diff --git a/.circleci/config.yml b/.circleci/config.yml
index 42855887a..d0dd4989e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -92,7 +92,7 @@ workflows:
 jobs:
   prep-deps-npm:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -108,7 +108,7 @@ jobs:
 
   prep-build:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -127,7 +127,7 @@ jobs:
 
   prep-docs:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -142,7 +142,7 @@ jobs:
 
   prep-scss:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -161,7 +161,7 @@ jobs:
 
   test-lint:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -172,7 +172,7 @@ jobs:
 
   # test-deps:
   #   docker:
-  #   - image: circleci/node:12.15.0-browsers
+  #   - image: circleci/node:10.19.0-browsers
   #   steps:
   #   - checkout
   #   - restore_cache:
@@ -183,7 +183,7 @@ jobs:
 
   test-e2e-chrome:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -208,7 +208,7 @@ jobs:
 
   test-e2e-firefox:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -229,7 +229,7 @@ jobs:
 
   test-e2e-beta-chrome:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -245,7 +245,7 @@ jobs:
 
   test-e2e-beta-firefox:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -266,7 +266,7 @@ jobs:
 
   job-screens:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -283,7 +283,7 @@ jobs:
 
   job-publish-prerelease:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -310,7 +310,7 @@ jobs:
 
   job-publish-release:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -323,7 +323,7 @@ jobs:
 
   job-publish-postrelease:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -340,7 +340,7 @@ jobs:
 
   test-unit:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -353,7 +353,7 @@ jobs:
     environment:
       browsers: '["Firefox"]'
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -371,7 +371,7 @@ jobs:
     environment:
       browsers: '["Chrome"]'
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -384,7 +384,7 @@ jobs:
     environment:
       browsers: '["Firefox"]'
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -402,7 +402,7 @@ jobs:
     environment:
       browsers: '["Chrome"]'
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - checkout
     - restore_cache:
@@ -413,7 +413,7 @@ jobs:
 
   all-tests-pass:
     docker:
-    - image: circleci/node:12.15.0-browsers
+    - image: circleci/node:10.19.0-browsers
     steps:
     - run:
         name: All Tests Passed
diff --git a/README.md b/README.md
index 36d8e470a..056fedb8d 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 
 ## Building locally
 
- - Install [Node.js](https://nodejs.org/en/) version 12.x.x and npm version 6.14.2
+ - Install [Node.js](https://nodejs.org/en/) version 10.x.x and npm version 6.13.4
    - If you are using [nvm](https://github.com/creationix/nvm#installation) (recommended) running `nvm use` will automatically choose the right node version for you.
    - Select npm 6.9.0: ```npm install -g npm@6.9.0```
  - Install dependencies: ```npm install```
diff --git a/app/scripts/background.js b/app/scripts/background.js
index c71745182..c26ee6506 100644
--- a/app/scripts/background.js
+++ b/app/scripts/background.js
@@ -5,7 +5,6 @@
 // this needs to run before anything else
 require('./lib/setupFetchDebugging')()
 
-const urlUtil = require('url')
 const endOfStream = require('end-of-stream')
 const pump = require('pump')
 const debounce = require('debounce-stream')
@@ -29,7 +28,6 @@ const setupMetamaskMeshMetrics = require('./lib/setupMetamaskMeshMetrics')
 const EdgeEncryptor = require('./edge-encryptor')
 const getFirstPreferredLangCode = require('./lib/get-first-preferred-lang-code')
 const getObjStructure = require('./lib/getObjStructure')
-const ipfsContent = require('./lib/ipfsContent.js')
 
 const {
   ENVIRONMENT_TYPE_POPUP,
@@ -59,7 +57,6 @@ const isIE = !!document.documentMode
 // Edge 20+
 const isEdge = !isIE && !!window.StyleMedia
 
-let ipfsHandle
 let popupIsOpen = false
 let notificationIsOpen = false
 const openMetamaskTabsIDs = {}
@@ -166,7 +163,6 @@ async function initialize () {
   const initLangCode = await getFirstPreferredLangCode()
   await setupController(initState, initLangCode)
   log.debug('Nifty Wallet initialization complete.')
-  ipfsHandle = ipfsContent(initState.NetworkController.provider)
 }
 
 //
@@ -271,11 +267,6 @@ function setupController (initState, initLangCode) {
   })
   global.metamaskController = controller
 
-  controller.networkController.on('networkDidChange', () => {
-    ipfsHandle && ipfsHandle.remove()
-    ipfsHandle = ipfsContent(controller.networkController.providerStore.getState())
-  })
-
   // report failed transactions to Sentry
   controller.txController.on(`tx:status-update`, (txId, status) => {
     if (status !== 'failed') return
@@ -295,7 +286,7 @@ function setupController (initState, initLangCode) {
     createStreamSink(persistData),
     (error) => {
       log.error('Nifty Wallet - Persistence pipeline failed', error)
-    }
+    },
   )
 
   /**
@@ -397,9 +388,8 @@ function setupController (initState, initLangCode) {
 
   // communication with page or other extension
   function connectExternal (remotePort) {
-    const originDomain = urlUtil.parse(remotePort.sender.url).hostname
     const portStream = new PortStream(remotePort)
-    controller.setupUntrustedCommunication(portStream, originDomain)
+    controller.setupUntrustedCommunication(portStream, remotePort.sender)
   }
 
   //
@@ -410,6 +400,8 @@ function setupController (initState, initLangCode) {
   controller.txController.on('update:badge', updateBadge)
   controller.messageManager.on('updateBadge', updateBadge)
   controller.personalMessageManager.on('updateBadge', updateBadge)
+  controller.decryptMessageManager.on('updateBadge', updateBadge)
+  controller.encryptionPublicKeyManager.on('updateBadge', updateBadge)
   controller.typedMessageManager.on('updateBadge', updateBadge)
 
   /**
@@ -417,12 +409,15 @@ function setupController (initState, initLangCode) {
    * The number reflects the current number of pending transactions or message signatures needing user approval.
    */
   function updateBadge () {
-    var label = ''
-    var unapprovedTxCount = controller.txController.getUnapprovedTxCount()
-    var unapprovedMsgCount = controller.messageManager.unapprovedMsgCount
-    var unapprovedPersonalMsgs = controller.personalMessageManager.unapprovedPersonalMsgCount
-    var unapprovedTypedMsgs = controller.typedMessageManager.unapprovedTypedMessagesCount
-    var count = unapprovedTxCount + unapprovedMsgCount + unapprovedPersonalMsgs + unapprovedTypedMsgs
+    let label = ''
+    const unapprovedTxCount = controller.txController.getUnapprovedTxCount()
+    const unapprovedMsgCount = controller.messageManager.unapprovedMsgCount
+    const unapprovedPersonalMsgCount = controller.personalMessageManager.unapprovedPersonalMsgCount
+    const unapprovedDecryptMsgCount = controller.decryptMessageManager.unapprovedDecryptMsgCount
+    const unapprovedEncryptionPublicKeyMsgCount = controller.encryptionPublicKeyManager.unapprovedEncryptionPublicKeyMsgCount
+    const unapprovedTypedMessagesCount = controller.typedMessageManager.unapprovedTypedMessagesCount
+    const count = unapprovedTxCount + unapprovedMsgCount + unapprovedPersonalMsgCount + unapprovedDecryptMsgCount + unapprovedEncryptionPublicKeyMsgCount +
+                 unapprovedTypedMessagesCount
     if (count) {
       label = String(count)
     }
@@ -463,12 +458,12 @@ function showWatchAssetUi () {
   triggerUi()
   return new Promise(
     (resolve) => {
-      var interval = setInterval(() => {
+      const interval = setInterval(() => {
         if (!notificationIsOpen) {
           clearInterval(interval)
           resolve()
         }
       }, 1000)
-    }
+    },
   )
 }
diff --git a/app/scripts/contentscript.js b/app/scripts/contentscript.js
index 04e15b423..4faceed9d 100644
--- a/app/scripts/contentscript.js
+++ b/app/scripts/contentscript.js
@@ -59,7 +59,7 @@ function setupStreams () {
     pageStream,
     pluginStream,
     pageStream,
-    (err) => logStreamDisconnectWarning('Nifty Wallet Contentscript Forwarding', err)
+    (err) => logStreamDisconnectWarning('Nifty Wallet Contentscript Forwarding', err),
   )
 
   // setup local multistream channels
@@ -70,13 +70,13 @@ function setupStreams () {
     mux,
     pageStream,
     mux,
-    (err) => logStreamDisconnectWarning('Nifty Wallet Inpage', err)
+    (err) => logStreamDisconnectWarning('Nifty Wallet Inpage', err),
   )
   pump(
     mux,
     pluginStream,
     mux,
-    (err) => logStreamDisconnectWarning('Nifty Wallet Background', err)
+    (err) => logStreamDisconnectWarning('Nifty Wallet Background', err),
   )
 
   // connect ping stream
@@ -85,7 +85,7 @@ function setupStreams () {
     mux,
     pongStream,
     mux,
-    (err) => logStreamDisconnectWarning('Nifty Wallet PingPongStream', err)
+    (err) => logStreamDisconnectWarning('Nifty Wallet PingPongStream', err),
   )
 
   // connect phishing warning stream
diff --git a/app/scripts/controllers/preferences.js b/app/scripts/controllers/preferences.js
index 33eb91f3d..21db813be 100644
--- a/app/scripts/controllers/preferences.js
+++ b/app/scripts/controllers/preferences.js
@@ -32,6 +32,7 @@ class PreferencesController {
       tokens: [],
       suggestedTokens: {},
       useBlockie: false,
+      usePhishDetect: true,
       featureFlags: {},
       currentLocale: opts.initLangCode,
       identities: {},
@@ -77,6 +78,16 @@ class PreferencesController {
     this.store.updateState({ useBlockie: val })
   }
 
+  /**
+   * Setter for the `usePhishDetect` property
+   *
+   * @param {boolean} val - Whether or not the user prefers phishing domain protection
+   *
+   */
+  setUsePhishDetect (val) {
+    this.store.updateState({ usePhishDetect: val })
+  }
+
   getSuggestedTokens () {
     return this.store.getState().suggestedTokens
   }
diff --git a/app/scripts/controllers/user-actions.js b/app/scripts/controllers/user-actions.js
deleted file mode 100644
index f777054b8..000000000
--- a/app/scripts/controllers/user-actions.js
+++ /dev/null
@@ -1,17 +0,0 @@
-const MessageManager = require('./lib/message-manager')
-const PersonalMessageManager = require('./lib/personal-message-manager')
-const TypedMessageManager = require('./lib/typed-message-manager')
-
-class UserActionController {
-
-  constructor (opts = {}) {
-
-    this.messageManager = new MessageManager()
-    this.personalMessageManager = new PersonalMessageManager()
-    this.typedMessageManager = new TypedMessageManager()
-
-  }
-
-}
-
-module.exports = UserActionController
diff --git a/app/scripts/inpage.js b/app/scripts/inpage.js
index 7335e077e..d0d200d48 100644
--- a/app/scripts/inpage.js
+++ b/app/scripts/inpage.js
@@ -1,10 +1,45 @@
 /*global Web3*/
+
+// need to make sure we aren't affected by overlapping namespaces
+// and that we dont affect the app with our namespace
+// mostly a fix for web3's BigNumber if AMD's "define" is defined...
+let __define
+
+/**
+ * Caches reference to global define object and deletes it to
+ * avoid conflicts with other global define objects, such as
+ * AMD's define function
+ */
+const cleanContextForImports = () => {
+  __define = global.define
+  try {
+    global.define = undefined
+  } catch (_) {
+    console.warn('Nifty Wallet - global.define could not be deleted.')
+  }
+}
+
+/**
+ * Restores global define object from cached reference
+ */
+const restoreContextAfterImports = () => {
+  try {
+    global.define = __define
+  } catch (_) {
+    console.warn('Nifty Wallet - global.define could not be overwritten.')
+  }
+}
+
 cleanContextForImports()
-require('web3/dist/web3.min.js')
-const log = require('loglevel')
-const LocalMessageDuplexStream = require('post-message-stream')
-const setupDappAutoReload = require('./lib/auto-reload.js')
-const MetamaskInpageProvider = require('nifty-wallet-inpage-provider')
+
+import log from 'loglevel'
+import LocalMessageDuplexStream from 'post-message-stream'
+import MetamaskInpageProvider from 'nifty-wallet-inpage-provider'
+
+// TODO:deprecate:Q1-2020
+import 'web3/dist/web3.min.js'
+
+import setupDappAutoReload from './lib/auto-reload.js'
 
 restoreContextAfterImports()
 
@@ -15,13 +50,14 @@ log.setDefaultLevel(process.env.METAMASK_DEBUG ? 'debug' : 'warn')
 //
 
 // setup background connection
-var metamaskStream = new LocalMessageDuplexStream({
+const metamaskStream = new LocalMessageDuplexStream({
   name: 'nifty-inpage',
   target: 'nifty-contentscript',
 })
 
 // compose the inpage provider
-var inpageProvider = new MetamaskInpageProvider(metamaskStream)
+const inpageProvider = new MetamaskInpageProvider(metamaskStream)
+
 // set a high max listener count to avoid unnecesary warnings
 inpageProvider.setMaxListeners(100)
 
@@ -43,79 +79,35 @@ inpageProvider.enable = function (options = {}) {
 }
 
 // Work around for web3@1.0 deleting the bound `sendAsync` but not the unbound
-// `sendAsync` method on the prototype, causing `this` reference issues with drizzle
+// `sendAsync` method on the prototype, causing `this` reference issues
 const proxiedInpageProvider = new Proxy(inpageProvider, {
   // straight up lie that we deleted the property so that it doesnt
   // throw an error in strict mode
   deleteProperty: () => true,
 })
 
-window.ethereum = proxiedInpageProvider
-
 //
+// TODO:deprecate:Q1-2020
+//
+
 // setup web3
-//
 
-var web3 = new Web3(inpageProvider)
+const web3 = new Web3(proxiedInpageProvider)
 web3.setProvider = function () {
   log.debug('Nifty Wallet - overrode web3.setProvider')
 }
 log.debug('Nifty Wallet - injected web3')
 
+proxiedInpageProvider._web3Ref = web3.eth
+
 setupDappAutoReload(web3, inpageProvider.publicConfigStore)
 
-// export global web3, with usage-detection and deprecation warning
-
-/* TODO: Uncomment this area once auto-reload.js has been deprecated:
-let hasBeenWarned = false
-global.web3 = new Proxy(web3, {
-  get: (_web3, key) => {
-    // show warning once on web3 access
-    if (!hasBeenWarned && key !== 'currentProvider') {
-      console.warn('Nifty Wallet: web3 will be deprecated in the near future in favor of the ethereumProvider \nhttps://github.com/MetaMask/faq/blob/master/detecting_metamask.md#web3-deprecation')
-      hasBeenWarned = true
-    }
-    // return value normally
-    return _web3[key]
-  },
-  set: (_web3, key, value) => {
-    // set value normally
-    _web3[key] = value
-  },
-})
-*/
-
 // set web3 defaultAccount
 inpageProvider.publicConfigStore.subscribe(function (state) {
   web3.eth.defaultAccount = state.selectedAddress
 })
+//
+// end deprecate:Q1-2020
+//
 
-// need to make sure we aren't affected by overlapping namespaces
-// and that we dont affect the app with our namespace
-// mostly a fix for web3's BigNumber if AMD's "define" is defined...
-var __define
-
-/**
- * Caches reference to global define object and deletes it to
- * avoid conflicts with other global define objects, such as
- * AMD's define function
- */
-function cleanContextForImports () {
-  __define = global.define
-  try {
-    global.define = undefined
-  } catch (_) {
-    console.warn('Nifty Wallet - global.define could not be deleted.')
-  }
-}
-
-/**
- * Restores global define object from cached reference
- */
-function restoreContextAfterImports () {
-  try {
-    global.define = __define
-  } catch (_) {
-    console.warn('Nifty Wallet - global.define could not be overwritten.')
-  }
-}
+window.ethereum = proxiedInpageProvider
diff --git a/app/scripts/lib/ComposableObservableStore.js b/app/scripts/lib/ComposableObservableStore.js
index fff28b63f..ab9ca88f3 100644
--- a/app/scripts/lib/ComposableObservableStore.js
+++ b/app/scripts/lib/ComposableObservableStore.js
@@ -40,7 +40,9 @@ class ComposableObservableStore extends ObservableStore {
   getFlatState () {
     let flatState = {}
     for (const key in this.config) {
-      flatState = { ...flatState, ...this.config[key].getState() }
+      const controller = this.config[key]
+      const state = controller.getState ? controller.getState() : controller.state
+      flatState = { ...flatState, ...state }
     }
     return flatState
   }
diff --git a/app/scripts/lib/auto-reload.js b/app/scripts/lib/auto-reload.js
index 558391a06..fa818096f 100644
--- a/app/scripts/lib/auto-reload.js
+++ b/app/scripts/lib/auto-reload.js
@@ -1,3 +1,6 @@
+
+// TODO:deprecate:Q1-2020
+
 module.exports = setupDappAutoReload
 
 function setupDappAutoReload (web3, observable) {
@@ -5,11 +8,17 @@ function setupDappAutoReload (web3, observable) {
   let reloadInProgress = false
   let lastTimeUsed
   let lastSeenNetwork
+  let hasBeenWarned = false
 
   global.web3 = new Proxy(web3, {
     get: (_web3, key) => {
       // get the time of use
       lastTimeUsed = Date.now()
+      // show warning once on web3 access
+      if (!hasBeenWarned && key !== 'currentProvider') {
+        console.warn(`MetaMask: In Q1 2020, MetaMask will no longer inject web3. For more information, see: https://medium.com/metamask/no-longer-injecting-web3-js-4a899ad6e59e`)
+        hasBeenWarned = true
+      }
       // return value normally
       return _web3[key]
     },
@@ -20,8 +29,16 @@ function setupDappAutoReload (web3, observable) {
   })
 
   observable.subscribe(function (state) {
+    // if the auto refresh on network change is false do not
+    // do anything
+    if (!window.ethereum.autoRefreshOnNetworkChange) {
+      return
+    }
+
     // if reload in progress, no need to check reload logic
-    if (reloadInProgress) return
+    if (reloadInProgress) {
+      return
+    }
 
     const currentNetwork = state.networkVersion
 
@@ -32,10 +49,14 @@ function setupDappAutoReload (web3, observable) {
     }
 
     // skip reload logic if web3 not used
-    if (!lastTimeUsed) return
+    if (!lastTimeUsed) {
+      return
+    }
 
     // if network did not change, exit
-    if (currentNetwork === lastSeenNetwork) return
+    if (currentNetwork === lastSeenNetwork) {
+      return
+    }
 
     // initiate page reload
     reloadInProgress = true
diff --git a/app/scripts/lib/createTabIdMiddleware.js b/app/scripts/lib/createTabIdMiddleware.js
new file mode 100644
index 000000000..0edfcb834
--- /dev/null
+++ b/app/scripts/lib/createTabIdMiddleware.js
@@ -0,0 +1,14 @@
+
+module.exports = createTabIdMiddleware
+
+/**
+ * Returns a middleware that appends the DApp TabId to the request
+ * @param {{ tabId: number }} opts - The middleware options
+ * @returns {Function}
+ */
+function createTabIdMiddleware (opts) {
+  return function tabIdMiddleware (/** @type {any} */ req, /** @type {any} */ _, /** @type {Function} */ next) {
+    req.tabId = opts.tabId
+    next()
+  }
+}
diff --git a/app/scripts/lib/decrypt-message-manager.js b/app/scripts/lib/decrypt-message-manager.js
new file mode 100644
index 000000000..24b8e8dd7
--- /dev/null
+++ b/app/scripts/lib/decrypt-message-manager.js
@@ -0,0 +1,311 @@
+import EventEmitter from 'events'
+import ObservableStore from 'obs-store'
+import ethUtil from 'ethereumjs-util'
+import { ethErrors } from 'eth-json-rpc-errors'
+import createId from './random-id'
+
+const hexRe = /^[0-9A-Fa-f]+$/g
+import log from 'loglevel'
+
+/**
+ * Represents, and contains data about, an 'eth_decrypt' type decryption request. These are created when a
+ * decryption for an eth_decrypt call is requested.
+ *
+ * @typedef {Object} DecryptMessage
+ * @property {number} id An id to track and identify the message object
+ * @property {Object} msgParams The parameters to pass to the decryptMessage method once the decryption request is
+ * approved.
+ * @property {Object} msgParams.metamaskId Added to msgParams for tracking and identification within MetaMask.
+ * @property {string} msgParams.data A hex string conversion of the raw buffer data of the decryption request
+ * @property {number} time The epoch time at which the this message was created
+ * @property {string} status Indicates whether the decryption request is 'unapproved', 'approved', 'decrypted' or 'rejected'
+ * @property {string} type The json-prc decryption method for which a decryption request has been made. A 'Message' will
+ * always have a 'eth_decrypt' type.
+ *
+ */
+
+export default class DecryptMessageManager extends EventEmitter {
+  /**
+   * Controller in charge of managing - storing, adding, removing, updating - DecryptMessage.
+   *
+   * @typedef {Object} DecryptMessageManager
+   * @property {Object} memStore The observable store where DecryptMessage are saved with persistance.
+   * @property {Object} memStore.unapprovedDecryptMsgs A collection of all DecryptMessages in the 'unapproved' state
+   * @property {number} memStore.unapprovedDecryptMsgCount The count of all DecryptMessages in this.memStore.unapprobedMsgs
+   * @property {array} messages Holds all messages that have been created by this DecryptMessageManager
+   *
+   */
+  constructor () {
+    super()
+    this.memStore = new ObservableStore({
+      unapprovedDecryptMsgs: {},
+      unapprovedDecryptMsgCount: 0,
+    })
+    this.messages = []
+  }
+
+  /**
+   * A getter for the number of 'unapproved' DecryptMessages in this.messages
+   *
+   * @returns {number} The number of 'unapproved' DecryptMessages in this.messages
+   *
+   */
+  get unapprovedDecryptMsgCount () {
+    return Object.keys(this.getUnapprovedMsgs()).length
+  }
+
+  /**
+   * A getter for the 'unapproved' DecryptMessages in this.messages
+   *
+   * @returns {Object} An index of DecryptMessage ids to DecryptMessages, for all 'unapproved' DecryptMessages in
+   * this.messages
+   *
+   */
+  getUnapprovedMsgs () {
+    return this.messages.filter((msg) => msg.status === 'unapproved')
+      .reduce((result, msg) => {
+        result[msg.id] = msg; return result
+      }, {})
+  }
+
+  /**
+   * Creates a new DecryptMessage with an 'unapproved' status using the passed msgParams. this.addMsg is called to add
+   * the new DecryptMessage to this.messages, and to save the unapproved DecryptMessages from that list to
+   * this.memStore.
+   *
+   * @param {Object} msgParams The params for the eth_decrypt call to be made after the message is approved.
+   * @param {Object} req (optional) The original request object possibly containing the origin
+   * @returns {Promise<Buffer>} The raw decrypted message contents
+   *
+   */
+  addUnapprovedMessageAsync (msgParams, req) {
+    return new Promise((resolve, reject) => {
+      if (!msgParams.from) {
+        reject(new Error('MetaMask Message for Decryption: from field is required.'))
+      }
+      const msgId = this.addUnapprovedMessage(msgParams, req)
+      this.once(`${msgId}:finished`, (data) => {
+        switch (data.status) {
+          case 'decrypted':
+            return resolve(data.rawData)
+          case 'rejected':
+            return reject(ethErrors.provider.userRejectedRequest('MetaMask Message for Decryption: User denied message decryption.'))
+          case 'errored':
+            return reject(new Error('This message cannot be decrypted'))
+          default:
+            return reject(new Error(`MetaMask Message for Decryption: Unknown problem: ${JSON.stringify(msgParams)}`))
+        }
+      })
+    })
+  }
+
+  /**
+   * Creates a new DecryptMessage with an 'unapproved' status using the passed msgParams. this.addMsg is called to add
+   * the new DecryptMessage to this.messages, and to save the unapproved DecryptMessages from that list to
+   * this.memStore.
+   *
+   * @param {Object} msgParams The params for the eth_decryptMsg call to be made after the message is approved.
+   * @param {Object} req (optional) The original request object possibly containing the origin
+   * @returns {number} The id of the newly created DecryptMessage.
+   *
+   */
+  addUnapprovedMessage (msgParams, req) {
+    log.debug(`DecryptMessageManager addUnapprovedMessage: ${JSON.stringify(msgParams)}`)
+    // add origin from request
+    if (req) {
+      msgParams.origin = req.origin
+    }
+    msgParams.data = this.normalizeMsgData(msgParams.data)
+    // create txData obj with parameters and meta data
+    const time = (new Date()).getTime()
+    const msgId = createId()
+    const msgData = {
+      id: msgId,
+      msgParams: msgParams,
+      time: time,
+      status: 'unapproved',
+      type: 'eth_decrypt',
+    }
+    this.addMsg(msgData)
+
+    // signal update
+    this.emit('update')
+    return msgId
+  }
+
+  /**
+   * Adds a passed DecryptMessage to this.messages, and calls this._saveMsgList() to save the unapproved DecryptMessages from that
+   * list to this.memStore.
+   *
+   * @param {Message} msg The DecryptMessage to add to this.messages
+   *
+   */
+  addMsg (msg) {
+    this.messages.push(msg)
+    this._saveMsgList()
+  }
+
+  /**
+   * Returns a specified DecryptMessage.
+   *
+   * @param {number} msgId The id of the DecryptMessage to get
+   * @returns {DecryptMessage|undefined} The DecryptMessage with the id that matches the passed msgId, or undefined
+   * if no DecryptMessage has that id.
+   *
+   */
+  getMsg (msgId) {
+    return this.messages.find((msg) => msg.id === msgId)
+  }
+
+  /**
+   * Approves a DecryptMessage. Sets the message status via a call to this.setMsgStatusApproved, and returns a promise
+   * with the message params modified for proper decryption.
+   *
+   * @param {Object} msgParams The msgParams to be used when eth_decryptMsg is called, plus data added by MetaMask.
+   * @param {Object} msgParams.metamaskId Added to msgParams for tracking and identification within MetaMask.
+   * @returns {Promise<object>} Promises the msgParams object with metamaskId removed.
+   *
+   */
+  approveMessage (msgParams) {
+    this.setMsgStatusApproved(msgParams.metamaskId)
+    return this.prepMsgForDecryption(msgParams)
+  }
+
+  /**
+   * Sets a DecryptMessage status to 'approved' via a call to this._setMsgStatus.
+   *
+   * @param {number} msgId The id of the DecryptMessage to approve.
+   *
+   */
+  setMsgStatusApproved (msgId) {
+    this._setMsgStatus(msgId, 'approved')
+  }
+
+  /**
+   * Sets a DecryptMessage status to 'decrypted' via a call to this._setMsgStatus and updates that DecryptMessage in
+   * this.messages by adding the raw decryption data of the decryption request to the DecryptMessage
+   *
+   * @param {number} msgId The id of the DecryptMessage to decrypt.
+   * @param {buffer} rawData The raw data of the message request
+   *
+   */
+  setMsgStatusDecrypted (msgId, rawData) {
+    const msg = this.getMsg(msgId)
+    msg.rawData = rawData
+    this._updateMsg(msg)
+    this._setMsgStatus(msgId, 'decrypted')
+  }
+
+  /**
+   * Removes the metamaskId property from passed msgParams and returns a promise which resolves the updated msgParams
+   *
+   * @param {Object} msgParams The msgParams to modify
+   * @returns {Promise<object>} Promises the msgParams with the metamaskId property removed
+   *
+   */
+  prepMsgForDecryption (msgParams) {
+    delete msgParams.metamaskId
+    return Promise.resolve(msgParams)
+  }
+
+  /**
+   * Sets a DecryptMessage status to 'rejected' via a call to this._setMsgStatus.
+   *
+   * @param {number} msgId The id of the DecryptMessage to reject.
+   *
+   */
+  rejectMsg (msgId) {
+    this._setMsgStatus(msgId, 'rejected')
+  }
+
+  /**
+   * Sets a TypedMessage status to 'errored' via a call to this._setMsgStatus.
+   *
+   * @param {number} msgId The id of the TypedMessage to error
+   *
+   */
+  errorMessage (msgId, error) {
+    const msg = this.getMsg(msgId)
+    msg.error = error
+    this._updateMsg(msg)
+    this._setMsgStatus(msgId, 'errored')
+  }
+
+  /**
+   * Updates the status of a DecryptMessage in this.messages via a call to this._updateMsg
+   *
+   * @private
+   * @param {number} msgId The id of the DecryptMessage to update.
+   * @param {string} status The new status of the DecryptMessage.
+   * @throws A 'DecryptMessageManager - DecryptMessage not found for id: "${msgId}".' if there is no DecryptMessage
+   * in this.messages with an id equal to the passed msgId
+   * @fires An event with a name equal to `${msgId}:${status}`. The DecryptMessage is also fired.
+   * @fires If status is 'rejected' or 'decrypted', an event with a name equal to `${msgId}:finished` is fired along
+   * with the DecryptMessage
+   *
+   */
+  _setMsgStatus (msgId, status) {
+    const msg = this.getMsg(msgId)
+    if (!msg) {
+      throw new Error('DecryptMessageManager - Message not found for id: "${msgId}".')
+    }
+    msg.status = status
+    this._updateMsg(msg)
+    this.emit(`${msgId}:${status}`, msg)
+    if (status === 'rejected' || status === 'decrypted' || status === 'errored') {
+      this.emit(`${msgId}:finished`, msg)
+    }
+  }
+
+  /**
+   * Sets a DecryptMessage in this.messages to the passed DecryptMessage if the ids are equal. Then saves the
+   * unapprovedDecryptMsgs index to storage via this._saveMsgList
+   *
+   * @private
+   * @param {msg} DecryptMessage A DecryptMessage that will replace an existing DecryptMessage (with the same
+   * id) in this.messages
+   *
+   */
+  _updateMsg (msg) {
+    const index = this.messages.findIndex((message) => message.id === msg.id)
+    if (index !== -1) {
+      this.messages[index] = msg
+    }
+    this._saveMsgList()
+  }
+
+  /**
+   * Saves the unapproved DecryptMessages, and their count, to this.memStore
+   *
+   * @private
+   * @fires 'updateBadge'
+   *
+   */
+  _saveMsgList () {
+    const unapprovedDecryptMsgs = this.getUnapprovedMsgs()
+    const unapprovedDecryptMsgCount = Object.keys(unapprovedDecryptMsgs).length
+    this.memStore.updateState({ unapprovedDecryptMsgs, unapprovedDecryptMsgCount })
+    this.emit('updateBadge')
+  }
+
+  /**
+   * A helper function that converts raw buffer data to a hex, or just returns the data if it is already formatted as a hex.
+   *
+   * @param {any} data The buffer data to convert to a hex
+   * @returns {string} A hex string conversion of the buffer data
+   *
+   */
+  normalizeMsgData (data) {
+    try {
+      const stripped = ethUtil.stripHexPrefix(data)
+      if (stripped.match(hexRe)) {
+        return ethUtil.addHexPrefix(stripped)
+      }
+    } catch (e) {
+      log.debug(`Message was not hex encoded, interpreting as utf8.`)
+    }
+
+    return ethUtil.bufferToHex(Buffer.from(data, 'utf8'))
+  }
+
+}
diff --git a/app/scripts/lib/encryption-public-key-manager.js b/app/scripts/lib/encryption-public-key-manager.js
new file mode 100644
index 000000000..4055104c0
--- /dev/null
+++ b/app/scripts/lib/encryption-public-key-manager.js
@@ -0,0 +1,286 @@
+import EventEmitter from 'events'
+import ObservableStore from 'obs-store'
+import { ethErrors } from 'eth-json-rpc-errors'
+import createId from './random-id'
+import log from 'loglevel'
+
+/**
+ * Represents, and contains data about, an 'eth_getEncryptionPublicKey' type request. These are created when
+ * an eth_getEncryptionPublicKey call is requested.
+ *
+ * @typedef {Object} EncryptionPublicKey
+ * @property {number} id An id to track and identify the message object
+ * @property {Object} msgParams The parameters to pass to the encryptionPublicKey method once the request is
+ * approved.
+ * @property {Object} msgParams.metamaskId Added to msgParams for tracking and identification within MetaMask.
+ * @property {string} msgParams.data A hex string conversion of the raw buffer data of the request
+ * @property {number} time The epoch time at which the this message was created
+ * @property {string} status Indicates whether the request is 'unapproved', 'approved', 'received' or 'rejected'
+ * @property {string} type The json-prc method for which a request has been made. A 'Message' will
+ * always have a 'eth_getEncryptionPublicKey' type.
+ *
+ */
+
+export default class EncryptionPublicKeyManager extends EventEmitter {
+  /**
+   * Controller in charge of managing - storing, adding, removing, updating - EncryptionPublicKey.
+   *
+   * @typedef {Object} EncryptionPublicKeyManager
+   * @property {Object} memStore The observable store where EncryptionPublicKey are saved with persistance.
+   * @property {Object} memStore.unapprovedEncryptionPublicKeyMsgs A collection of all EncryptionPublicKeys in the 'unapproved' state
+   * @property {number} memStore.unapprovedEncryptionPublicKeyMsgCount The count of all EncryptionPublicKeys in this.memStore.unapprobedMsgs
+   * @property {array} messages Holds all messages that have been created by this EncryptionPublicKeyManager
+   *
+   */
+  constructor () {
+    super()
+    this.memStore = new ObservableStore({
+      unapprovedEncryptionPublicKeyMsgs: {},
+      unapprovedEncryptionPublicKeyMsgCount: 0,
+    })
+    this.messages = []
+  }
+
+  /**
+   * A getter for the number of 'unapproved' EncryptionPublicKeys in this.messages
+   *
+   * @returns {number} The number of 'unapproved' EncryptionPublicKeys in this.messages
+   *
+   */
+  get unapprovedEncryptionPublicKeyMsgCount () {
+    return Object.keys(this.getUnapprovedMsgs()).length
+  }
+
+  /**
+   * A getter for the 'unapproved' EncryptionPublicKeys in this.messages
+   *
+   * @returns {Object} An index of EncryptionPublicKey ids to EncryptionPublicKeys, for all 'unapproved' EncryptionPublicKeys in
+   * this.messages
+   *
+   */
+  getUnapprovedMsgs () {
+    return this.messages.filter((msg) => msg.status === 'unapproved')
+      .reduce((result, msg) => {
+        result[msg.id] = msg; return result
+      }, {})
+  }
+
+  /**
+   * Creates a new EncryptionPublicKey with an 'unapproved' status using the passed msgParams. this.addMsg is called to add
+   * the new EncryptionPublicKey to this.messages, and to save the unapproved EncryptionPublicKeys from that list to
+   * this.memStore.
+   *
+   * @param {Object} address The param for the eth_getEncryptionPublicKey call to be made after the message is approved.
+   * @param {Object} req (optional) The original request object possibly containing the origin
+   * @returns {Promise<Buffer>} The raw public key contents
+   *
+   */
+  addUnapprovedMessageAsync (address, req) {
+    return new Promise((resolve, reject) => {
+      if (!address) {
+        reject(new Error('MetaMask Message for EncryptionPublicKey: address field is required.'))
+      }
+      const msgId = this.addUnapprovedMessage(address, req)
+      this.once(`${msgId}:finished`, (data) => {
+        switch (data.status) {
+          case 'received':
+            return resolve(data.rawData)
+          case 'rejected':
+            return reject(ethErrors.provider.userRejectedRequest('MetaMask Message for EncryptionPublicKey: User denied message EncryptionPublicKey.'))
+          default:
+            return reject(new Error(`MetaMask Message for EncryptionPublicKey: Unknown problem: ${JSON.stringify(address)}`))
+        }
+      })
+    })
+  }
+
+  /**
+   * Creates a new EncryptionPublicKey with an 'unapproved' status using the passed msgParams. this.addMsg is called to add
+   * the new EncryptionPublicKey to this.messages, and to save the unapproved EncryptionPublicKeys from that list to
+   * this.memStore.
+   *
+   * @param {Object} address The param for the eth_getEncryptionPublicKey call to be made after the message is approved.
+   * @param {Object} _req (optional) The original request object possibly containing the origin
+   * @returns {number} The id of the newly created EncryptionPublicKey.
+   *
+   */
+  addUnapprovedMessage (address, req) {
+    log.debug(`EncryptionPublicKeyManager addUnapprovedMessage: address`)
+    // create txData obj with parameters and meta data
+    const time = (new Date()).getTime()
+    const msgId = createId()
+    const msgData = {
+      id: msgId,
+      msgParams: address,
+      time: time,
+      status: 'unapproved',
+      type: 'eth_getEncryptionPublicKey',
+    }
+
+    if (req) {
+      msgData.origin = req.origin
+    }
+
+    this.addMsg(msgData)
+
+    // signal update
+    this.emit('update')
+    return msgId
+  }
+
+  /**
+   * Adds a passed EncryptionPublicKey to this.messages, and calls this._saveMsgList() to save the unapproved EncryptionPublicKeys from that
+   * list to this.memStore.
+   *
+   * @param {Message} msg The EncryptionPublicKey to add to this.messages
+   *
+   */
+  addMsg (msg) {
+    this.messages.push(msg)
+    this._saveMsgList()
+  }
+
+  /**
+   * Returns a specified EncryptionPublicKey.
+   *
+   * @param {number} msgId The id of the EncryptionPublicKey to get
+   * @returns {EncryptionPublicKey|undefined} The EncryptionPublicKey with the id that matches the passed msgId, or undefined
+   * if no EncryptionPublicKey has that id.
+   *
+   */
+  getMsg (msgId) {
+    return this.messages.find((msg) => msg.id === msgId)
+  }
+
+  /**
+   * Approves a EncryptionPublicKey. Sets the message status via a call to this.setMsgStatusApproved, and returns a promise
+   * with any the message params modified for proper providing.
+   *
+   * @param {Object} msgParams The msgParams to be used when eth_getEncryptionPublicKey is called, plus data added by MetaMask.
+   * @param {Object} msgParams.metamaskId Added to msgParams for tracking and identification within MetaMask.
+   * @returns {Promise<object>} Promises the msgParams object with metamaskId removed.
+   *
+   */
+  approveMessage (msgParams) {
+    this.setMsgStatusApproved(msgParams.metamaskId)
+    return this.prepMsgForEncryptionPublicKey(msgParams)
+  }
+
+  /**
+   * Sets a EncryptionPublicKey status to 'approved' via a call to this._setMsgStatus.
+   *
+   * @param {number} msgId The id of the EncryptionPublicKey to approve.
+   *
+   */
+  setMsgStatusApproved (msgId) {
+    this._setMsgStatus(msgId, 'approved')
+  }
+
+  /**
+   * Sets a EncryptionPublicKey status to 'received' via a call to this._setMsgStatus and updates that EncryptionPublicKey in
+   * this.messages by adding the raw data of request to the EncryptionPublicKey
+   *
+   * @param {number} msgId The id of the EncryptionPublicKey.
+   * @param {buffer} rawData The raw data of the message request
+   *
+   */
+  setMsgStatusReceived (msgId, rawData) {
+    const msg = this.getMsg(msgId)
+    msg.rawData = rawData
+    this._updateMsg(msg)
+    this._setMsgStatus(msgId, 'received')
+  }
+
+  /**
+   * Removes the metamaskId property from passed msgParams and returns a promise which resolves the updated msgParams
+   *
+   * @param {Object} msgParams The msgParams to modify
+   * @returns {Promise<object>} Promises the msgParams with the metamaskId property removed
+   *
+   */
+  prepMsgForEncryptionPublicKey (msgParams) {
+    delete msgParams.metamaskId
+    return Promise.resolve(msgParams)
+  }
+
+  /**
+   * Sets a EncryptionPublicKey status to 'rejected' via a call to this._setMsgStatus.
+   *
+   * @param {number} msgId The id of the EncryptionPublicKey to reject.
+   *
+   */
+  rejectMsg (msgId) {
+    this._setMsgStatus(msgId, 'rejected')
+  }
+
+  /**
+   * Sets a TypedMessage status to 'errored' via a call to this._setMsgStatus.
+   *
+   * @param {number} msgId The id of the TypedMessage to error
+   *
+   */
+  errorMessage (msgId, error) {
+    const msg = this.getMsg(msgId)
+    msg.error = error
+    this._updateMsg(msg)
+    this._setMsgStatus(msgId, 'errored')
+  }
+
+  /**
+   * Updates the status of a EncryptionPublicKey in this.messages via a call to this._updateMsg
+   *
+   * @private
+   * @param {number} msgId The id of the EncryptionPublicKey to update.
+   * @param {string} status The new status of the EncryptionPublicKey.
+   * @throws A 'EncryptionPublicKeyManager - EncryptionPublicKey not found for id: "${msgId}".' if there is no EncryptionPublicKey
+   * in this.messages with an id equal to the passed msgId
+   * @fires An event with a name equal to `${msgId}:${status}`. The EncryptionPublicKey is also fired.
+   * @fires If status is 'rejected' or 'received', an event with a name equal to `${msgId}:finished` is fired along
+   * with the EncryptionPublicKey
+   *
+   */
+  _setMsgStatus (msgId, status) {
+    const msg = this.getMsg(msgId)
+    if (!msg) {
+      throw new Error('EncryptionPublicKeyManager - Message not found for id: "${msgId}".')
+    }
+    msg.status = status
+    this._updateMsg(msg)
+    this.emit(`${msgId}:${status}`, msg)
+    if (status === 'rejected' || status === 'received') {
+      this.emit(`${msgId}:finished`, msg)
+    }
+  }
+
+  /**
+   * Sets a EncryptionPublicKey in this.messages to the passed EncryptionPublicKey if the ids are equal. Then saves the
+   * unapprovedEncryptionPublicKeyMsgs index to storage via this._saveMsgList
+   *
+   * @private
+   * @param {msg} EncryptionPublicKey A EncryptionPublicKey that will replace an existing EncryptionPublicKey (with the same
+   * id) in this.messages
+   *
+   */
+  _updateMsg (msg) {
+    const index = this.messages.findIndex((message) => message.id === msg.id)
+    if (index !== -1) {
+      this.messages[index] = msg
+    }
+    this._saveMsgList()
+  }
+
+  /**
+   * Saves the unapproved EncryptionPublicKeys, and their count, to this.memStore
+   *
+   * @private
+   * @fires 'updateBadge'
+   *
+   */
+  _saveMsgList () {
+    const unapprovedEncryptionPublicKeyMsgs = this.getUnapprovedMsgs()
+    const unapprovedEncryptionPublicKeyMsgCount = Object.keys(unapprovedEncryptionPublicKeyMsgs).length
+    this.memStore.updateState({ unapprovedEncryptionPublicKeyMsgs, unapprovedEncryptionPublicKeyMsgCount })
+    this.emit('updateBadge')
+  }
+
+}
diff --git a/app/scripts/lib/enums.js b/app/scripts/lib/enums.js
index c6d57a1bc..50a8ccf68 100644
--- a/app/scripts/lib/enums.js
+++ b/app/scripts/lib/enums.js
@@ -1,6 +1,7 @@
 const ENVIRONMENT_TYPE_POPUP = 'popup'
 const ENVIRONMENT_TYPE_NOTIFICATION = 'notification'
 const ENVIRONMENT_TYPE_FULLSCREEN = 'fullscreen'
+const ENVIRONMENT_TYPE_BACKGROUND = 'background'
 
 const PLATFORM_BRAVE = 'Brave'
 const PLATFORM_CHROME = 'Chrome'
@@ -8,10 +9,11 @@ const PLATFORM_EDGE = 'Edge'
 const PLATFORM_FIREFOX = 'Firefox'
 const PLATFORM_OPERA = 'Opera'
 
-module.exports = {
+export {
   ENVIRONMENT_TYPE_POPUP,
   ENVIRONMENT_TYPE_NOTIFICATION,
   ENVIRONMENT_TYPE_FULLSCREEN,
+  ENVIRONMENT_TYPE_BACKGROUND,
   PLATFORM_BRAVE,
   PLATFORM_CHROME,
   PLATFORM_EDGE,
diff --git a/app/scripts/lib/get-first-preferred-lang-code.js b/app/scripts/lib/get-first-preferred-lang-code.js
index 170d508c1..b8a297470 100644
--- a/app/scripts/lib/get-first-preferred-lang-code.js
+++ b/app/scripts/lib/get-first-preferred-lang-code.js
@@ -4,7 +4,7 @@ const allLocales = require('../../_locales/index.json')
 
 const getPreferredLocales = extension.i18n ? promisify(
   extension.i18n.getAcceptLanguages,
-  { errorFirst: false }
+  { errorFirst: false },
 ) : async () => []
 
 const existingLocaleCodes = allLocales.map(locale => locale.code.toLowerCase().replace('_', '-'))
diff --git a/app/scripts/lib/message-manager.js b/app/scripts/lib/message-manager.js
index ddd6e5187..d2e2f6c8e 100644
--- a/app/scripts/lib/message-manager.js
+++ b/app/scripts/lib/message-manager.js
@@ -1,7 +1,8 @@
-const EventEmitter = require('events')
-const ObservableStore = require('obs-store')
-const ethUtil = require('ethereumjs-util')
-const createId = require('./random-id')
+import EventEmitter from 'events'
+import ObservableStore from 'obs-store'
+import ethUtil from 'ethereumjs-util'
+import { ethErrors } from 'eth-json-rpc-errors'
+import createId from './random-id'
 
 /**
  * Represents, and contains data about, an 'eth_sign' type signature request. These are created when a signature for
@@ -21,7 +22,7 @@ const createId = require('./random-id')
  *
  */
 
-module.exports = class MessageManager extends EventEmitter {
+export default class MessageManager extends EventEmitter {
 
   /**
    * Controller in charge of managing - storing, adding, removing, updating - Messages.
@@ -34,7 +35,7 @@ module.exports = class MessageManager extends EventEmitter {
    * @property {array} messages Holds all messages that have been created by this MessageManager
    *
    */
-  constructor (opts) {
+  constructor () {
     super()
     this.memStore = new ObservableStore({
       unapprovedMsgs: {},
@@ -46,7 +47,7 @@ module.exports = class MessageManager extends EventEmitter {
   /**
    * A getter for the number of 'unapproved' Messages in this.messages
    *
-   * @returns {number} The number of 'unapproved' Messages in this.messages
+   * @returns {number} - The number of 'unapproved' Messages in this.messages
    *
    */
   get unapprovedMsgCount () {
@@ -56,21 +57,23 @@ module.exports = class MessageManager extends EventEmitter {
   /**
    * A getter for the 'unapproved' Messages in this.messages
    *
-   * @returns {Object} An index of Message ids to Messages, for all 'unapproved' Messages in this.messages
+   * @returns {Object} - An index of Message ids to Messages, for all 'unapproved' Messages in this.messages
    *
    */
   getUnapprovedMsgs () {
-    return this.messages.filter(msg => msg.status === 'unapproved')
-    .reduce((result, msg) => { result[msg.id] = msg; return result }, {})
+    return this.messages.filter((msg) => msg.status === 'unapproved')
+      .reduce((result, msg) => {
+        result[msg.id] = msg; return result
+      }, {})
   }
 
   /**
    * Creates a new Message with an 'unapproved' status using the passed msgParams. this.addMsg is called to add the
    * new Message to this.messages, and to save the unapproved Messages from that list to this.memStore.
    *
-   * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} msgParams - The params for the eth_sign call to be made after the message is approved.
    * @param {Object} req (optional) The original request object possibly containing the origin
-   * @returns {promise} after signature has been
+   * @returns {promise} - after signature has been
    *
    */
   addUnapprovedMessageAsync (msgParams, req) {
@@ -82,7 +85,7 @@ module.exports = class MessageManager extends EventEmitter {
           case 'signed':
             return resolve(data.rawSig)
           case 'rejected':
-            return reject(new Error('Nifty Wallet Message Signature: User denied message signature.'))
+            return reject(ethErrors.provider.userRejectedRequest('Nifty Wallet Message Signature: User denied message signature.'))
           default:
             return reject(new Error(`Nifty Wallet Message Signature: Unknown problem: ${JSON.stringify(msgParams)}`))
         }
@@ -94,19 +97,21 @@ module.exports = class MessageManager extends EventEmitter {
    * Creates a new Message with an 'unapproved' status using the passed msgParams. this.addMsg is called to add the
    * new Message to this.messages, and to save the unapproved Messages from that list to this.memStore.
    *
-   * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} msgParams - The params for the eth_sign call to be made after the message is approved.
    * @param {Object} req (optional) The original request object where the origin may be specificied
-   * @returns {number} The id of the newly created message.
+   * @returns {number} - The id of the newly created message.
    *
    */
   addUnapprovedMessage (msgParams, req) {
     // add origin from request
-    if (req) msgParams.origin = req.origin
+    if (req) {
+      msgParams.origin = req.origin
+    }
     msgParams.data = normalizeMsgData(msgParams.data)
     // create txData obj with parameters and meta data
-    var time = (new Date()).getTime()
-    var msgId = createId()
-    var msgData = {
+    const time = (new Date()).getTime()
+    const msgId = createId()
+    const msgData = {
       id: msgId,
       msgParams: msgParams,
       time: time,
@@ -124,7 +129,7 @@ module.exports = class MessageManager extends EventEmitter {
    * Adds a passed Message to this.messages, and calls this._saveMsgList() to save the unapproved Messages from that
    * list to this.memStore.
    *
-   * @param {Message} msg The Message to add to this.messages
+   * @param {Message} msg - The Message to add to this.messages
    *
    */
   addMsg (msg) {
@@ -135,21 +140,21 @@ module.exports = class MessageManager extends EventEmitter {
   /**
    * Returns a specified Message.
    *
-   * @param {number} msgId The id of the Message to get
-   * @returns {Message|undefined} The Message with the id that matches the passed msgId, or undefined if no Message has that id.
+   * @param {number} msgId - The id of the Message to get
+   * @returns {Message|undefined} - The Message with the id that matches the passed msgId, or undefined if no Message has that id.
    *
    */
   getMsg (msgId) {
-    return this.messages.find(msg => msg.id === msgId)
+    return this.messages.find((msg) => msg.id === msgId)
   }
 
   /**
    * Approves a Message. Sets the message status via a call to this.setMsgStatusApproved, and returns a promise with
    * any the message params modified for proper signing.
    *
-   * @param {Object} msgParams The msgParams to be used when eth_sign is called, plus data added by MetaMask.
+   * @param {Object} msgParams - The msgParams to be used when eth_sign is called, plus data added by MetaMask.
    * @param {Object} msgParams.metamaskId Added to msgParams for tracking and identification within MetaMask.
-   * @returns {Promise<object>} Promises the msgParams object with metamaskId removed.
+   * @returns {Promise<object>} - Promises the msgParams object with metamaskId removed.
    *
    */
   approveMessage (msgParams) {
@@ -160,7 +165,7 @@ module.exports = class MessageManager extends EventEmitter {
   /**
    * Sets a Message status to 'approved' via a call to this._setMsgStatus.
    *
-   * @param {number} msgId The id of the Message to approve.
+   * @param {number} msgId - The id of the Message to approve.
    *
    */
   setMsgStatusApproved (msgId) {
@@ -171,8 +176,8 @@ module.exports = class MessageManager extends EventEmitter {
    * Sets a Message status to 'signed' via a call to this._setMsgStatus and updates that Message in this.messages by
    * adding the raw signature data of the signature request to the Message
    *
-   * @param {number} msgId The id of the Message to sign.
-   * @param {buffer} rawSig The raw data of the signature request
+   * @param {number} msgId - The id of the Message to sign.
+   * @param {buffer} rawSig - The raw data of the signature request
    *
    */
   setMsgStatusSigned (msgId, rawSig) {
@@ -185,8 +190,8 @@ module.exports = class MessageManager extends EventEmitter {
   /**
    * Removes the metamaskId property from passed msgParams and returns a promise which resolves the updated msgParams
    *
-   * @param {Object} msgParams The msgParams to modify
-   * @returns {Promise<object>} Promises the msgParams with the metamaskId property removed
+   * @param {Object} msgParams - The msgParams to modify
+   * @returns {Promise<object>} - Promises the msgParams with the metamaskId property removed
    *
    */
   prepMsgForSigning (msgParams) {
@@ -197,7 +202,7 @@ module.exports = class MessageManager extends EventEmitter {
   /**
    * Sets a Message status to 'rejected' via a call to this._setMsgStatus.
    *
-   * @param {number} msgId The id of the Message to reject.
+   * @param {number} msgId - The id of the Message to reject.
    *
    */
   rejectMsg (msgId) {
@@ -208,8 +213,8 @@ module.exports = class MessageManager extends EventEmitter {
    * Updates the status of a Message in this.messages via a call to this._updateMsg
    *
    * @private
-   * @param {number} msgId The id of the Message to update.
-   * @param {string} status The new status of the Message.
+   * @param {number} msgId - The id of the Message to update.
+   * @param {string} status - The new status of the Message.
    * @throws A 'MessageManager - Message not found for id: "${msgId}".' if there is no Message in this.messages with an
    * id equal to the passed msgId
    * @fires An event with a name equal to `${msgId}:${status}`. The Message is also fired.
@@ -218,7 +223,9 @@ module.exports = class MessageManager extends EventEmitter {
    */
   _setMsgStatus (msgId, status) {
     const msg = this.getMsg(msgId)
-    if (!msg) throw new Error('MessageManager - Message not found for id: "${msgId}".')
+    if (!msg) {
+      throw new Error('MessageManager - Message not found for id: "${msgId}".')
+    }
     msg.status = status
     this._updateMsg(msg)
     this.emit(`${msgId}:${status}`, msg)
@@ -232,7 +239,7 @@ module.exports = class MessageManager extends EventEmitter {
    * storage via this._saveMsgList
    *
    * @private
-   * @param {msg} Message A Message that will replace an existing Message (with the same id) in this.messages
+   * @param {msg} Message - A Message that will replace an existing Message (with the same id) in this.messages
    *
    */
   _updateMsg (msg) {
@@ -262,8 +269,8 @@ module.exports = class MessageManager extends EventEmitter {
 /**
  * A helper function that converts raw buffer data to a hex, or just returns the data if it is already formatted as a hex.
  *
- * @param {any} data The buffer data to convert to a hex
- * @returns {string} A hex string conversion of the buffer data
+ * @param {any} data - The buffer data to convert to a hex
+ * @returns {string} - A hex string conversion of the buffer data
  *
  */
 function normalizeMsgData (data) {
diff --git a/app/scripts/lib/personal-message-manager.js b/app/scripts/lib/personal-message-manager.js
index cf9158ae5..891b3b24f 100644
--- a/app/scripts/lib/personal-message-manager.js
+++ b/app/scripts/lib/personal-message-manager.js
@@ -1,9 +1,11 @@
-const EventEmitter = require('events')
-const ObservableStore = require('obs-store')
-const ethUtil = require('ethereumjs-util')
-const createId = require('./random-id')
+import EventEmitter from 'events'
+import ObservableStore from 'obs-store'
+import ethUtil from 'ethereumjs-util'
+import { ethErrors } from 'eth-json-rpc-errors'
+import createId from './random-id'
+
 const hexRe = /^[0-9A-Fa-f]+$/g
-const log = require('loglevel')
+import log from 'loglevel'
 
 /**
  * Represents, and contains data about, an 'personal_sign' type signature request. These are created when a
@@ -24,7 +26,7 @@ const log = require('loglevel')
  *
  */
 
-module.exports = class PersonalMessageManager extends EventEmitter {
+export default class PersonalMessageManager extends EventEmitter {
   /**
    * Controller in charge of managing - storing, adding, removing, updating - PersonalMessage.
    *
@@ -36,7 +38,7 @@ module.exports = class PersonalMessageManager extends EventEmitter {
    * @property {array} messages Holds all messages that have been created by this PersonalMessageManager
    *
    */
-  constructor (opts) {
+  constructor () {
     super()
     this.memStore = new ObservableStore({
       unapprovedPersonalMsgs: {},
@@ -48,7 +50,7 @@ module.exports = class PersonalMessageManager extends EventEmitter {
   /**
    * A getter for the number of 'unapproved' PersonalMessages in this.messages
    *
-   * @returns {number} The number of 'unapproved' PersonalMessages in this.messages
+   * @returns {number} - The number of 'unapproved' PersonalMessages in this.messages
    *
    */
   get unapprovedPersonalMsgCount () {
@@ -58,13 +60,15 @@ module.exports = class PersonalMessageManager extends EventEmitter {
   /**
    * A getter for the 'unapproved' PersonalMessages in this.messages
    *
-   * @returns {Object} An index of PersonalMessage ids to PersonalMessages, for all 'unapproved' PersonalMessages in
+   * @returns {Object} - An index of PersonalMessage ids to PersonalMessages, for all 'unapproved' PersonalMessages in
    * this.messages
    *
    */
   getUnapprovedMsgs () {
-    return this.messages.filter(msg => msg.status === 'unapproved')
-    .reduce((result, msg) => { result[msg.id] = msg; return result }, {})
+    return this.messages.filter((msg) => msg.status === 'unapproved')
+      .reduce((result, msg) => {
+        result[msg.id] = msg; return result
+      }, {})
   }
 
   /**
@@ -72,9 +76,9 @@ module.exports = class PersonalMessageManager extends EventEmitter {
    * the new PersonalMessage to this.messages, and to save the unapproved PersonalMessages from that list to
    * this.memStore.
    *
-   * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} msgParams - The params for the eth_sign call to be made after the message is approved.
    * @param {Object} req (optional) The original request object possibly containing the origin
-   * @returns {promise} When the message has been signed or rejected
+   * @returns {promise} - When the message has been signed or rejected
    *
    */
   addUnapprovedMessageAsync (msgParams, req) {
@@ -88,7 +92,7 @@ module.exports = class PersonalMessageManager extends EventEmitter {
           case 'signed':
             return resolve(data.rawSig)
           case 'rejected':
-            return reject(new Error('Nifty Wallet Message Signature: User denied message signature.'))
+            return reject(ethErrors.provider.userRejectedRequest('Nifty Wallet Message Signature: User denied message signature.'))
           default:
             return reject(new Error(`Nifty Wallet Message Signature: Unknown problem: ${JSON.stringify(msgParams)}`))
         }
@@ -101,20 +105,22 @@ module.exports = class PersonalMessageManager extends EventEmitter {
    * the new PersonalMessage to this.messages, and to save the unapproved PersonalMessages from that list to
    * this.memStore.
    *
-   * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} msgParams - The params for the eth_sign call to be made after the message is approved.
    * @param {Object} req (optional) The original request object possibly containing the origin
-   * @returns {number} The id of the newly created PersonalMessage.
+   * @returns {number} - The id of the newly created PersonalMessage.
    *
    */
   addUnapprovedMessage (msgParams, req) {
     log.debug(`PersonalMessageManager addUnapprovedMessage: ${JSON.stringify(msgParams)}`)
     // add origin from request
-    if (req) msgParams.origin = req.origin
+    if (req) {
+      msgParams.origin = req.origin
+    }
     msgParams.data = this.normalizeMsgData(msgParams.data)
     // create txData obj with parameters and meta data
-    var time = (new Date()).getTime()
-    var msgId = createId()
-    var msgData = {
+    const time = (new Date()).getTime()
+    const msgId = createId()
+    const msgData = {
       id: msgId,
       msgParams: msgParams,
       time: time,
@@ -132,7 +138,7 @@ module.exports = class PersonalMessageManager extends EventEmitter {
    * Adds a passed PersonalMessage to this.messages, and calls this._saveMsgList() to save the unapproved PersonalMessages from that
    * list to this.memStore.
    *
-   * @param {Message} msg The PersonalMessage to add to this.messages
+   * @param {Message} msg - The PersonalMessage to add to this.messages
    *
    */
   addMsg (msg) {
@@ -143,22 +149,22 @@ module.exports = class PersonalMessageManager extends EventEmitter {
   /**
    * Returns a specified PersonalMessage.
    *
-   * @param {number} msgId The id of the PersonalMessage to get
-   * @returns {PersonalMessage|undefined} The PersonalMessage with the id that matches the passed msgId, or undefined
+   * @param {number} msgId - The id of the PersonalMessage to get
+   * @returns {PersonalMessage|undefined} - The PersonalMessage with the id that matches the passed msgId, or undefined
    * if no PersonalMessage has that id.
    *
    */
   getMsg (msgId) {
-    return this.messages.find(msg => msg.id === msgId)
+    return this.messages.find((msg) => msg.id === msgId)
   }
 
   /**
    * Approves a PersonalMessage. Sets the message status via a call to this.setMsgStatusApproved, and returns a promise
    * with any the message params modified for proper signing.
    *
-   * @param {Object} msgParams The msgParams to be used when eth_sign is called, plus data added by MetaMask.
+   * @param {Object} msgParams - The msgParams to be used when eth_sign is called, plus data added by MetaMask.
    * @param {Object} msgParams.metamaskId Added to msgParams for tracking and identification within MetaMask.
-   * @returns {Promise<object>} Promises the msgParams object with metamaskId removed.
+   * @returns {Promise<object>} - Promises the msgParams object with metamaskId removed.
    *
    */
   approveMessage (msgParams) {
@@ -169,7 +175,7 @@ module.exports = class PersonalMessageManager extends EventEmitter {
   /**
    * Sets a PersonalMessage status to 'approved' via a call to this._setMsgStatus.
    *
-   * @param {number} msgId The id of the PersonalMessage to approve.
+   * @param {number} msgId - The id of the PersonalMessage to approve.
    *
    */
   setMsgStatusApproved (msgId) {
@@ -180,8 +186,8 @@ module.exports = class PersonalMessageManager extends EventEmitter {
    * Sets a PersonalMessage status to 'signed' via a call to this._setMsgStatus and updates that PersonalMessage in
    * this.messages by adding the raw signature data of the signature request to the PersonalMessage
    *
-   * @param {number} msgId The id of the PersonalMessage to sign.
-   * @param {buffer} rawSig The raw data of the signature request
+   * @param {number} msgId - The id of the PersonalMessage to sign.
+   * @param {buffer} rawSig - The raw data of the signature request
    *
    */
   setMsgStatusSigned (msgId, rawSig) {
@@ -194,8 +200,8 @@ module.exports = class PersonalMessageManager extends EventEmitter {
   /**
    * Removes the metamaskId property from passed msgParams and returns a promise which resolves the updated msgParams
    *
-   * @param {Object} msgParams The msgParams to modify
-   * @returns {Promise<object>} Promises the msgParams with the metamaskId property removed
+   * @param {Object} msgParams - The msgParams to modify
+   * @returns {Promise<object>} - Promises the msgParams with the metamaskId property removed
    *
    */
   prepMsgForSigning (msgParams) {
@@ -206,7 +212,7 @@ module.exports = class PersonalMessageManager extends EventEmitter {
   /**
    * Sets a PersonalMessage status to 'rejected' via a call to this._setMsgStatus.
    *
-   * @param {number} msgId The id of the PersonalMessage to reject.
+   * @param {number} msgId - The id of the PersonalMessage to reject.
    *
    */
   rejectMsg (msgId) {
@@ -217,8 +223,8 @@ module.exports = class PersonalMessageManager extends EventEmitter {
    * Updates the status of a PersonalMessage in this.messages via a call to this._updateMsg
    *
    * @private
-   * @param {number} msgId The id of the PersonalMessage to update.
-   * @param {string} status The new status of the PersonalMessage.
+   * @param {number} msgId - The id of the PersonalMessage to update.
+   * @param {string} status - The new status of the PersonalMessage.
    * @throws A 'PersonalMessageManager - PersonalMessage not found for id: "${msgId}".' if there is no PersonalMessage
    * in this.messages with an id equal to the passed msgId
    * @fires An event with a name equal to `${msgId}:${status}`. The PersonalMessage is also fired.
@@ -228,7 +234,9 @@ module.exports = class PersonalMessageManager extends EventEmitter {
    */
   _setMsgStatus (msgId, status) {
     const msg = this.getMsg(msgId)
-    if (!msg) throw new Error('PersonalMessageManager - Message not found for id: "${msgId}".')
+    if (!msg) {
+      throw new Error(`PersonalMessageManager - Message not found for id: "${msgId}".`)
+    }
     msg.status = status
     this._updateMsg(msg)
     this.emit(`${msgId}:${status}`, msg)
@@ -242,7 +250,7 @@ module.exports = class PersonalMessageManager extends EventEmitter {
    * unapprovedPersonalMsgs index to storage via this._saveMsgList
    *
    * @private
-   * @param {msg} PersonalMessage A PersonalMessage that will replace an existing PersonalMessage (with the same
+   * @param {msg} PersonalMessage - A PersonalMessage that will replace an existing PersonalMessage (with the same
    * id) in this.messages
    *
    */
@@ -271,8 +279,8 @@ module.exports = class PersonalMessageManager extends EventEmitter {
   /**
    * A helper function that converts raw buffer data to a hex, or just returns the data if it is already formatted as a hex.
    *
-   * @param {any} data The buffer data to convert to a hex
-   * @returns {string} A hex string conversion of the buffer data
+   * @param {any} data - The buffer data to convert to a hex
+   * @returns {string} - A hex string conversion of the buffer data
    *
    */
   normalizeMsgData (data) {
diff --git a/app/scripts/lib/select-chain-id.js b/app/scripts/lib/select-chain-id.js
new file mode 100644
index 000000000..8e5228b17
--- /dev/null
+++ b/app/scripts/lib/select-chain-id.js
@@ -0,0 +1,22 @@
+import {
+  MAINNET_CHAIN_ID,
+  ROPSTEN_CHAIN_ID,
+  RINKEBY_CHAIN_ID,
+  KOVAN_CHAIN_ID,
+  GOERLI_CHAIN_ID,
+} from './enums'
+
+const standardNetworkId = {
+  '1': MAINNET_CHAIN_ID,
+  '3': ROPSTEN_CHAIN_ID,
+  '4': RINKEBY_CHAIN_ID,
+  '42': KOVAN_CHAIN_ID,
+  '5': GOERLI_CHAIN_ID,
+}
+
+function selectChainId (metamaskState) {
+  const { network, provider: { chainId } } = metamaskState
+  return standardNetworkId[network] || `0x${parseInt(chainId, 10).toString(16)}`
+}
+
+export default selectChainId
diff --git a/app/scripts/lib/stream-utils.js b/app/scripts/lib/stream-utils.js
index 3dbc064b5..82d9bbd32 100644
--- a/app/scripts/lib/stream-utils.js
+++ b/app/scripts/lib/stream-utils.js
@@ -1,36 +1,10 @@
-const Through = require('through2')
-const ObjectMultiplex = require('obj-multiplex')
-const pump = require('pump')
+import ObjectMultiplex from 'obj-multiplex'
+import pump from 'pump'
 
 module.exports = {
-  jsonParseStream: jsonParseStream,
-  jsonStringifyStream: jsonStringifyStream,
   setupMultiplex: setupMultiplex,
 }
 
-/**
- * Returns a stream transform that parses JSON strings passing through
- * @return {stream.Transform}
- */
-function jsonParseStream () {
-  return Through.obj(function (serialized, _, cb) {
-    this.push(JSON.parse(serialized))
-    cb()
-  })
-}
-
-/**
- * Returns a stream transform that calls {@code JSON.stringify}
- * on objects passing through
- * @return {stream.Transform} the stream transform
- */
-function jsonStringifyStream () {
-  return Through.obj(function (obj, _, cb) {
-    this.push(JSON.stringify(obj))
-    cb()
-  })
-}
-
 /**
  * Sets up stream multiplexing for the given stream
  * @param {any} connectionStream - the stream to mux
@@ -43,8 +17,10 @@ function setupMultiplex (connectionStream) {
     mux,
     connectionStream,
     (err) => {
-      if (err) console.error(err)
-    }
+      if (err) {
+        console.error(err)
+      }
+    },
   )
   return mux
 }
diff --git a/app/scripts/lib/typed-message-manager.js b/app/scripts/lib/typed-message-manager.js
index 7d950e163..364372382 100644
--- a/app/scripts/lib/typed-message-manager.js
+++ b/app/scripts/lib/typed-message-manager.js
@@ -1,10 +1,11 @@
-const EventEmitter = require('events')
-const ObservableStore = require('obs-store')
-const createId = require('./random-id')
-const assert = require('assert')
-const sigUtil = require('eth-sig-util')
-const log = require('loglevel')
-const jsonschema = require('jsonschema')
+import EventEmitter from 'events'
+import ObservableStore from 'obs-store'
+import createId from './random-id'
+import assert from 'assert'
+import { ethErrors } from 'eth-json-rpc-errors'
+import sigUtil from 'eth-sig-util'
+import log from 'loglevel'
+import jsonschema from 'jsonschema'
 
 /**
  * Represents, and contains data about, an 'eth_signTypedData' type signature request. These are created when a
@@ -24,7 +25,7 @@ const jsonschema = require('jsonschema')
  *
  */
 
-module.exports = class TypedMessageManager extends EventEmitter {
+export default class TypedMessageManager extends EventEmitter {
   /**
    * Controller in charge of managing - storing, adding, removing, updating - TypedMessage.
    */
@@ -41,7 +42,7 @@ module.exports = class TypedMessageManager extends EventEmitter {
   /**
    * A getter for the number of 'unapproved' TypedMessages in this.messages
    *
-   * @returns {number} The number of 'unapproved' TypedMessages in this.messages
+   * @returns {number} - The number of 'unapproved' TypedMessages in this.messages
    *
    */
   get unapprovedTypedMessagesCount () {
@@ -51,13 +52,15 @@ module.exports = class TypedMessageManager extends EventEmitter {
   /**
    * A getter for the 'unapproved' TypedMessages in this.messages
    *
-   * @returns {Object} An index of TypedMessage ids to TypedMessages, for all 'unapproved' TypedMessages in
+   * @returns {Object} - An index of TypedMessage ids to TypedMessages, for all 'unapproved' TypedMessages in
    * this.messages
    *
    */
   getUnapprovedMsgs () {
-    return this.messages.filter(msg => msg.status === 'unapproved')
-      .reduce((result, msg) => { result[msg.id] = msg; return result }, {})
+    return this.messages.filter((msg) => msg.status === 'unapproved')
+      .reduce((result, msg) => {
+        result[msg.id] = msg; return result
+      }, {})
   }
 
   /**
@@ -65,9 +68,9 @@ module.exports = class TypedMessageManager extends EventEmitter {
    * the new TypedMessage to this.messages, and to save the unapproved TypedMessages from that list to
    * this.memStore. Before any of this is done, msgParams are validated
    *
-   * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} msgParams - The params for the eth_sign call to be made after the message is approved.
    * @param {Object} req (optional) The original request object possibly containing the origin
-   * @returns {promise} When the message has been signed or rejected
+   * @returns {promise} - When the message has been signed or rejected
    *
    */
   addUnapprovedMessageAsync (msgParams, req, version) {
@@ -78,7 +81,7 @@ module.exports = class TypedMessageManager extends EventEmitter {
           case 'signed':
             return resolve(data.rawSig)
           case 'rejected':
-            return reject(new Error('Nifty Wallet Message Signature: User denied message signature.'))
+            return reject(ethErrors.provider.userRejectedRequest('Nifty Wallet Message Signature: User denied message signature.'))
           case 'errored':
             return reject(new Error(`Nifty Wallet Message Signature: ${data.error}`))
           default:
@@ -93,22 +96,24 @@ module.exports = class TypedMessageManager extends EventEmitter {
    * the new TypedMessage to this.messages, and to save the unapproved TypedMessages from that list to
    * this.memStore. Before any of this is done, msgParams are validated
    *
-   * @param {Object} msgParams The params for the eth_sign call to be made after the message is approved.
+   * @param {Object} msgParams - The params for the eth_sign call to be made after the message is approved.
    * @param {Object} req (optional) The original request object possibly containing the origin
-   * @returns {number} The id of the newly created TypedMessage.
+   * @returns {number} - The id of the newly created TypedMessage.
    *
    */
   addUnapprovedMessage (msgParams, req, version) {
     msgParams.version = version
     this.validateParams(msgParams)
     // add origin from request
-    if (req) msgParams.origin = req.origin
+    if (req) {
+      msgParams.origin = req.origin
+    }
 
     log.debug(`TypedMessageManager addUnapprovedMessage: ${JSON.stringify(msgParams)}`)
     // create txData obj with parameters and meta data
-    var time = (new Date()).getTime()
-    var msgId = createId()
-    var msgData = {
+    const time = (new Date()).getTime()
+    const msgId = createId()
+    const msgData = {
       id: msgId,
       msgParams: msgParams,
       time: time,
@@ -125,7 +130,7 @@ module.exports = class TypedMessageManager extends EventEmitter {
   /**
    * Helper method for this.addUnapprovedMessage. Validates that the passed params have the required properties.
    *
-   * @param {Object} params The params to validate
+   * @param {Object} params - The params to validate
    *
    */
   validateParams (params) {
@@ -141,13 +146,16 @@ module.exports = class TypedMessageManager extends EventEmitter {
         }, 'Expected EIP712 typed data')
         break
       case 'V3':
+      case 'V4':
         let data
         assert.equal(typeof params, 'object', 'Params should be an object.')
         assert.ok('data' in params, 'Params must include a data field.')
         assert.ok('from' in params, 'Params must include a from field.')
         assert.equal(typeof params.from, 'string', 'From field must be a string.')
         assert.equal(typeof params.data, 'string', 'Data must be passed as a valid JSON string.')
-        assert.doesNotThrow(() => { data = JSON.parse(params.data) }, 'Data must be passed as a valid JSON string.')
+        assert.doesNotThrow(() => {
+          data = JSON.parse(params.data)
+        }, 'Data must be passed as a valid JSON string.')
         const validation = jsonschema.validate(data, sigUtil.TYPED_MESSAGE_SCHEMA)
         assert.ok(data.primaryType in data.types, `Primary type of "${data.primaryType}" has no type definition.`)
         assert.equal(validation.errors.length, 0, 'Data must conform to EIP-712 schema. See https://git.io/fNtcx.')
@@ -155,6 +163,8 @@ module.exports = class TypedMessageManager extends EventEmitter {
         const activeChainId = parseInt(this.networkController.getNetworkState())
         chainId && assert.equal(chainId, activeChainId, `Provided chainId (${chainId}) must match the active chainId (${activeChainId})`)
         break
+      default:
+        assert.fail(`Unknown params.version ${params.version}`)
     }
   }
 
@@ -162,7 +172,7 @@ module.exports = class TypedMessageManager extends EventEmitter {
    * Adds a passed TypedMessage to this.messages, and calls this._saveMsgList() to save the unapproved TypedMessages from that
    * list to this.memStore.
    *
-   * @param {Message} msg The TypedMessage to add to this.messages
+   * @param {Message} msg - The TypedMessage to add to this.messages
    *
    */
   addMsg (msg) {
@@ -173,22 +183,22 @@ module.exports = class TypedMessageManager extends EventEmitter {
   /**
    * Returns a specified TypedMessage.
    *
-   * @param {number} msgId The id of the TypedMessage to get
-   * @returns {TypedMessage|undefined} The TypedMessage with the id that matches the passed msgId, or undefined
+   * @param {number} msgId - The id of the TypedMessage to get
+   * @returns {TypedMessage|undefined} - The TypedMessage with the id that matches the passed msgId, or undefined
    * if no TypedMessage has that id.
    *
    */
   getMsg (msgId) {
-    return this.messages.find(msg => msg.id === msgId)
+    return this.messages.find((msg) => msg.id === msgId)
   }
 
   /**
    * Approves a TypedMessage. Sets the message status via a call to this.setMsgStatusApproved, and returns a promise
    * with any the message params modified for proper signing.
    *
-   * @param {Object} msgParams The msgParams to be used when eth_sign is called, plus data added by MetaMask.
+   * @param {Object} msgParams - The msgParams to be used when eth_sign is called, plus data added by MetaMask.
    * @param {Object} msgParams.metamaskId Added to msgParams for tracking and identification within MetaMask.
-   * @returns {Promise<object>} Promises the msgParams object with metamaskId removed.
+   * @returns {Promise<object>} - Promises the msgParams object with metamaskId removed.
    *
    */
   approveMessage (msgParams) {
@@ -199,7 +209,7 @@ module.exports = class TypedMessageManager extends EventEmitter {
   /**
    * Sets a TypedMessage status to 'approved' via a call to this._setMsgStatus.
    *
-   * @param {number} msgId The id of the TypedMessage to approve.
+   * @param {number} msgId - The id of the TypedMessage to approve.
    *
    */
   setMsgStatusApproved (msgId) {
@@ -210,8 +220,8 @@ module.exports = class TypedMessageManager extends EventEmitter {
    * Sets a TypedMessage status to 'signed' via a call to this._setMsgStatus and updates that TypedMessage in
    * this.messages by adding the raw signature data of the signature request to the TypedMessage
    *
-   * @param {number} msgId The id of the TypedMessage to sign.
-   * @param {buffer} rawSig The raw data of the signature request
+   * @param {number} msgId - The id of the TypedMessage to sign.
+   * @param {buffer} rawSig - The raw data of the signature request
    *
    */
   setMsgStatusSigned (msgId, rawSig) {
@@ -224,8 +234,8 @@ module.exports = class TypedMessageManager extends EventEmitter {
   /**
    * Removes the metamaskId property from passed msgParams and returns a promise which resolves the updated msgParams
    *
-   * @param {Object} msgParams The msgParams to modify
-   * @returns {Promise<object>} Promises the msgParams with the metamaskId property removed
+   * @param {Object} msgParams - The msgParams to modify
+   * @returns {Promise<object>} - Promises the msgParams with the metamaskId property removed
    *
    */
   prepMsgForSigning (msgParams) {
@@ -237,7 +247,7 @@ module.exports = class TypedMessageManager extends EventEmitter {
   /**
    * Sets a TypedMessage status to 'rejected' via a call to this._setMsgStatus.
    *
-   * @param {number} msgId The id of the TypedMessage to reject.
+   * @param {number} msgId - The id of the TypedMessage to reject.
    *
    */
   rejectMsg (msgId) {
@@ -247,7 +257,7 @@ module.exports = class TypedMessageManager extends EventEmitter {
   /**
    * Sets a TypedMessage status to 'errored' via a call to this._setMsgStatus.
    *
-   * @param {number} msgId The id of the TypedMessage to error
+   * @param {number} msgId - The id of the TypedMessage to error
    *
    */
   errorMessage (msgId, error) {
@@ -265,8 +275,8 @@ module.exports = class TypedMessageManager extends EventEmitter {
    * Updates the status of a TypedMessage in this.messages via a call to this._updateMsg
    *
    * @private
-   * @param {number} msgId The id of the TypedMessage to update.
-   * @param {string} status The new status of the TypedMessage.
+   * @param {number} msgId - The id of the TypedMessage to update.
+   * @param {string} status - The new status of the TypedMessage.
    * @throws A 'TypedMessageManager - TypedMessage not found for id: "${msgId}".' if there is no TypedMessage
    * in this.messages with an id equal to the passed msgId
    * @fires An event with a name equal to `${msgId}:${status}`. The TypedMessage is also fired.
@@ -276,7 +286,9 @@ module.exports = class TypedMessageManager extends EventEmitter {
    */
   _setMsgStatus (msgId, status) {
     const msg = this.getMsg(msgId)
-    if (!msg) throw new Error('TypedMessageManager - Message not found for id: "${msgId}".')
+    if (!msg) {
+      throw new Error('TypedMessageManager - Message not found for id: "${msgId}".')
+    }
     msg.status = status
     this._updateMsg(msg)
     this.emit(`${msgId}:${status}`, msg)
@@ -290,7 +302,7 @@ module.exports = class TypedMessageManager extends EventEmitter {
    * unapprovedTypedMsgs index to storage via this._saveMsgList
    *
    * @private
-   * @param {msg} TypedMessage A TypedMessage that will replace an existing TypedMessage (with the same
+   * @param {msg} TypedMessage - A TypedMessage that will replace an existing TypedMessage (with the same
    * id) in this.messages
    *
    */
diff --git a/app/scripts/lib/util.js b/app/scripts/lib/util.js
index 8fa45fafb..4e3f2a8dd 100644
--- a/app/scripts/lib/util.js
+++ b/app/scripts/lib/util.js
@@ -1,6 +1,7 @@
-const ethUtil = require('ethereumjs-util')
-const assert = require('assert')
-const BN = require('bn.js')
+import extension from 'extensionizer'
+import ethUtil from 'ethereumjs-util'
+import assert from 'assert'
+import BN from 'bn.js'
 const {
   ENVIRONMENT_TYPE_POPUP,
   ENVIRONMENT_TYPE_NOTIFICATION,
@@ -152,6 +153,24 @@ function capitalizeFirstLetter (msg) {
   return msg.charAt(0).toUpperCase() + msg.slice(1)
 }
 
+/**
+ * Returns an Error if extension.runtime.lastError is present
+ * this is a workaround for the non-standard error object thats used
+ * @returns {Error}
+ */
+function checkForError () {
+  const lastError = extension.runtime.lastError
+  if (!lastError) {
+    return
+  }
+  // if it quacks like an Error, its an Error
+  if (lastError.stack && lastError.message) {
+    return lastError
+  }
+  // repair incomplete error object (eg chromium v77)
+  return new Error(lastError.message)
+}
+
 module.exports = {
   removeListeners,
   applyListeners,
@@ -163,4 +182,5 @@ module.exports = {
   bnToHex,
   BnMultiplyByFraction,
   capitalizeFirstLetter,
+  checkForError,
 }
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index 6074c4da0..cd2f3564c 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -4,21 +4,24 @@
  * @license   MIT
  */
 
-const EventEmitter = require('events')
-const pump = require('pump')
-const Dnode = require('dnode')
-const ObservableStore = require('obs-store')
+import EventEmitter from 'events'
+
+import pump from 'pump'
+import Dnode from 'dnode'
+import extension from 'extensionizer'
+import ObservableStore from 'obs-store'
 const ComposableObservableStore = require('./lib/ComposableObservableStore')
-const asStream = require('obs-store/lib/asStream')
+import asStream from 'obs-store/lib/asStream'
 const AccountTracker = require('./lib/account-tracker')
-const RpcEngine = require('json-rpc-engine')
-const debounce = require('debounce')
+import RpcEngine from 'json-rpc-engine'
+import { debounce } from 'lodash'
 const createEngineStream = require('json-rpc-middleware-stream/engineStream')
 const createFilterMiddleware = require('eth-json-rpc-filters')
 const createSubscriptionManager = require('eth-json-rpc-filters/subscriptionManager')
 const createOriginMiddleware = require('./lib/createOriginMiddleware')
 const createLoggerMiddleware = require('./lib/createLoggerMiddleware')
-const createProviderMiddleware = require('./lib/createProviderMiddleware')
+import createTabIdMiddleware from './lib/createTabIdMiddleware'
+import providerAsMiddleware from 'eth-json-rpc-middleware/providerAsMiddleware'
 const setupMultiplex = require('./lib/stream-utils.js').setupMultiplex
 const KeyringController = require('eth-keychain-controller')
 const NetworkController = require('./controllers/network')
@@ -28,34 +31,40 @@ const NoticeController = require('./notice-controller')
 const ShapeShiftController = require('./controllers/shapeshift')
 const AddressBookController = require('./controllers/address-book')
 const InfuraController = require('./controllers/infura')
-const BlacklistController = require('./controllers/blacklist')
 const CachedBalancesController = require('./controllers/cached-balances')
 const RecentBlocksController = require('./controllers/recent-blocks')
-const MessageManager = require('./lib/message-manager')
-const PersonalMessageManager = require('./lib/personal-message-manager')
-const TypedMessageManager = require('./lib/typed-message-manager')
+import MessageManager from './lib/message-manager'
+import DecryptMessageManager from './lib/decrypt-message-manager'
+import EncryptionPublicKeyManager from './lib/encryption-public-key-manager'
+import PersonalMessageManager from './lib/personal-message-manager'
+import TypedMessageManager from './lib/typed-message-manager'
 const TransactionController = require('./controllers/transactions')
 const BalancesController = require('./controllers/computed-balances')
 const TokenRatesController = require('./controllers/token-rates')
 const DetectTokensController = require('./controllers/detect-tokens')
 const nodeify = require('./lib/nodeify')
 const accountImporter = require('./account-import-strategies')
-const Mutex = require('await-semaphore').Mutex
+import { Mutex } from 'await-semaphore'
+import selectChainId from './lib/select-chain-id'
 const version = require('../manifest.json').version
-const BN = require('ethereumjs-util').BN
+import ethUtil, { BN } from 'ethereumjs-util'
 const GWEI_BN = new BN('1000000000')
-const percentile = require('percentile')
+import percentile from 'percentile'
 const seedPhraseVerifier = require('./lib/seed-phrase-verifier')
-const log = require('loglevel')
+import log from 'loglevel'
 const TrezorKeyring = require('eth-trezor-keyring')
 const LedgerBridgeKeyring = require('eth-ledger-bridge-keyring')
-const EthQuery = require('eth-query')
-const ethUtil = require('ethereumjs-util')
+import EthQuery from 'eth-query'
 const sigUtil = require('eth-sig-util')
+import nanoid from 'nanoid'
 const { importTypes } = require('../../old-ui/app/accounts/import/enums')
 const { LEDGER, TREZOR } = require('../../old-ui/app/components/connect-hardware/enum')
 const { ifPOA, ifRSK, getNetworkID, getDPath, setDPath } = require('../../old-ui/app/util')
 
+import {
+  PhishingController,
+} from 'gaba'
+
 const {
   CLASSIC_CODE,
   MAINNET_CODE } = require('./controllers/network/enums')
@@ -87,6 +96,10 @@ module.exports = class MetamaskController extends EventEmitter {
     // observable state store
     this.store = new ComposableObservableStore(initState)
 
+    // external connections by origin
+    // Do not modify directly. Use the associated methods.
+    this.connections = {}
+
     // lock to ensure only one vault created at once
     this.createVaultMutex = new Mutex()
 
@@ -114,8 +127,7 @@ module.exports = class MetamaskController extends EventEmitter {
     })
     this.infuraController.scheduleInfuraNetworkCheck()
 
-    this.blacklistController = new BlacklistController()
-    this.blacklistController.scheduleUpdates()
+    this.phishingController = new PhishingController()
 
     // rpc provider
     this.initializeProvider()
@@ -137,6 +149,7 @@ module.exports = class MetamaskController extends EventEmitter {
     this.accountTracker = new AccountTracker({
       provider: this.provider,
       blockTracker: this.blockTracker,
+      network: this.networkController,
     })
 
     // start and stop polling for balances based on activeControllerConnections
@@ -191,6 +204,7 @@ module.exports = class MetamaskController extends EventEmitter {
     })
 
     this.keyringController.memStore.subscribe((s) => this._onKeyringControllerUpdate(s))
+    this.keyringController.on('unlock', () => this.emit('unlock'))
 
     // detect tokens controller
     this.detectTokensController = new DetectTokensController({
@@ -251,8 +265,14 @@ module.exports = class MetamaskController extends EventEmitter {
     this.networkController.lookupNetwork()
     this.messageManager = new MessageManager()
     this.personalMessageManager = new PersonalMessageManager()
+    this.decryptMessageManager = new DecryptMessageManager()
+    this.encryptionPublicKeyManager = new EncryptionPublicKeyManager()
     this.typedMessageManager = new TypedMessageManager({ networkController: this.networkController })
-    this.publicConfigStore = this.initPublicConfigStore()
+
+    // ensure isClientOpenAndUnlocked is updated when memState updates
+    this.on('update', (memState) => {
+      this.isClientOpenAndUnlocked = memState.isUnlocked && this._isClientOpen
+    })
 
     this.store.updateStructure({
       TransactionController: this.txController.store,
@@ -276,6 +296,8 @@ module.exports = class MetamaskController extends EventEmitter {
       TokenRatesController: this.tokenRatesController.store,
       MessageManager: this.messageManager.memStore,
       PersonalMessageManager: this.personalMessageManager.memStore,
+      DecryptMessageManager: this.decryptMessageManager.memStore,
+      EncryptionPublicKeyManager: this.encryptionPublicKeyManager.memStore,
       TypesMessageManager: this.typedMessageManager.memStore,
       KeyringController: this.keyringController.memStore,
       PreferencesController: this.preferencesController.store,
@@ -301,20 +323,23 @@ module.exports = class MetamaskController extends EventEmitter {
       version,
       // account mgmt
       getAccounts: async () => {
-        const isUnlocked = this.keyringController.memStore.getState().isUnlocked
         const selectedAddress = this.preferencesController.getSelectedAddress()
         // only show address if account is unlocked
-        if (isUnlocked && selectedAddress) {
+        if (this.isUnlocked && selectedAddress) {
           return [selectedAddress]
-        } else {
-          return []
         }
+        return [] // changing this is a breaking change
       },
       // tx signing
       processTransaction: this.newUnapprovedTransaction.bind(this),
       // msg signing
       processEthSignMessage: this.newUnsignedMessage.bind(this),
+      processTypedMessage: this.newUnsignedTypedMessage.bind(this),
+      processTypedMessageV3: this.newUnsignedTypedMessage.bind(this),
+      processTypedMessageV4: this.newUnsignedTypedMessage.bind(this),
       processPersonalMessage: this.newUnsignedPersonalMessage.bind(this),
+      processDecryptMessage: this.newRequestDecryptMessage.bind(this),
+      processEncryptionPublicKey: this.newRequestEncryptionPublicKey.bind(this),
       getPendingNonce: this.getPendingNonce.bind(this),
     }
     const providerProxy = this.networkController.initializeProvider(providerOpts)
@@ -325,25 +350,30 @@ module.exports = class MetamaskController extends EventEmitter {
    * Constructor helper: initialize a public config store.
    * This store is used to make some config info available to Dapps synchronously.
    */
-  initPublicConfigStore () {
-    // get init state
+  createPublicConfigStore () {
+    // subset of state for metamask inpage provider
     const publicConfigStore = new ObservableStore()
 
-    // memStore -> transform -> publicConfigStore
-    this.on('update', (memState) => {
-      this.isClientOpenAndUnlocked = memState.isUnlocked && this._isClientOpen
-      const publicState = selectPublicState(memState)
-      publicConfigStore.putState(publicState)
-    })
+    // setup memStore subscription hooks
+    this.on('update', updatePublicConfigStore)
+    updatePublicConfigStore(this.getState())
 
-    function selectPublicState (memState) {
-      const result = {
-        selectedAddress: memState.isUnlocked ? memState.selectedAddress : undefined,
-        networkVersion: memState.network,
-      }
-      return result
+    publicConfigStore.destroy = () => {
+      this.removeEventListener && this.removeEventListener('update', updatePublicConfigStore)
     }
 
+    function updatePublicConfigStore (memState) {
+      publicConfigStore.putState(selectPublicState(memState))
+    }
+
+    function selectPublicState ({ isUnlocked, network, provider, selectedAddress }) {
+      return {
+        isUnlocked,
+        selectedAddress: isUnlocked ? selectedAddress : undefined,
+        networkVersion: network,
+        chainId: selectChainId({ network, provider }),
+      }
+    }
     return publicConfigStore
   }
 
@@ -354,7 +384,7 @@ module.exports = class MetamaskController extends EventEmitter {
   /**
    * The metamask-state of the various controllers, made available to the UI
    *
-   * @returns {Object} status
+   * @returns {Object} - status
    */
   getState () {
     const vault = this.keyringController.store.getState().vault
@@ -379,11 +409,11 @@ module.exports = class MetamaskController extends EventEmitter {
    */
   getApi () {
     const keyringController = this.keyringController
+    const networkController = this.networkController
     const preferencesController = this.preferencesController
     const txController = this.txController
     const noticeController = this.noticeController
     const addressBookController = this.addressBookController
-    const networkController = this.networkController
 
     return {
       // etc
@@ -391,6 +421,7 @@ module.exports = class MetamaskController extends EventEmitter {
       setCurrentCurrency: this.setCurrentCurrency.bind(this),
       setCurrentCoin: this.setCurrentCoin.bind(this),
       setUseBlockie: this.setUseBlockie.bind(this),
+      setUsePhishDetect: this.setUsePhishDetect.bind(this),
       setCurrentLocale: this.setCurrentLocale.bind(this),
       setDProvider: this.setDProvider.bind(this),
       markAccountsFound: this.markAccountsFound.bind(this),
@@ -471,10 +502,15 @@ module.exports = class MetamaskController extends EventEmitter {
       signPersonalMessage: nodeify(this.signPersonalMessage, this),
       cancelPersonalMessage: this.cancelPersonalMessage.bind(this),
 
-      // personalMessageManager
+      // typedMessageManager
       signTypedMessage: nodeify(this.signTypedMessage, this),
       cancelTypedMessage: this.cancelTypedMessage.bind(this),
 
+      // decryptMessageManager
+      decryptMessage: nodeify(this.decryptMessage, this),
+      decryptMessageInline: nodeify(this.decryptMessageInline, this),
+      cancelDecryptMessage: this.cancelDecryptMessage.bind(this),
+
       // notices
       checkNotices: noticeController.updateNoticesList.bind(noticeController),
       markNoticeRead: noticeController.markNoticeRead.bind(noticeController),
@@ -1169,6 +1205,147 @@ module.exports = class MetamaskController extends EventEmitter {
     }
   }
 
+  // eth_decrypt methods
+
+  /**
+  * Called when a dapp uses the eth_decrypt method.
+  *
+  * @param {Object} msgParams - The params of the message to sign & return to the Dapp.
+  * @param {Object} req - (optional) the original request, containing the origin
+  * Passed back to the requesting Dapp.
+  */
+ async newRequestDecryptMessage (msgParams, req) {
+  const promise = this.decryptMessageManager.addUnapprovedMessageAsync(msgParams, req)
+  this.sendUpdate()
+  this.opts.showUnconfirmedMessage()
+  return promise
+}
+
+/**
+* Only decypt message and don't touch transaction state
+*
+* @param {Object} msgParams - The params of the message to decrypt.
+* @returns {Promise<Object>} - A full state update.
+*/
+async decryptMessageInline (msgParams) {
+  log.info('MetaMaskController - decryptMessageInline')
+  // decrypt the message inline
+  const msgId = msgParams.metamaskId
+  const msg = this.decryptMessageManager.getMsg(msgId)
+  try {
+    const stripped = ethUtil.stripHexPrefix(msgParams.data)
+    const buff = Buffer.from(stripped, 'hex')
+    msgParams.data = JSON.parse(buff.toString('utf8'))
+
+    msg.rawData = await this.keyringController.decryptMessage(msgParams)
+  } catch (e) {
+    msg.error = e.message
+  }
+  this.decryptMessageManager._updateMsg(msg)
+
+  return this.getState()
+}
+
+/**
+* Signifies a user's approval to decrypt a message in queue.
+* Triggers decrypt, and the callback function from newUnsignedDecryptMessage.
+*
+* @param {Object} msgParams - The params of the message to decrypt & return to the Dapp.
+* @returns {Promise<Object>} - A full state update.
+*/
+async decryptMessage (msgParams) {
+  log.info('MetaMaskController - decryptMessage')
+  const msgId = msgParams.metamaskId
+  // sets the status op the message to 'approved'
+  // and removes the metamaskId for decryption
+  try {
+    const cleanMsgParams = await this.decryptMessageManager.approveMessage(msgParams)
+
+    const stripped = ethUtil.stripHexPrefix(cleanMsgParams.data)
+    const buff = Buffer.from(stripped, 'hex')
+    cleanMsgParams.data = JSON.parse(buff.toString('utf8'))
+
+    // decrypt the message
+    const rawMess = await this.keyringController.decryptMessage(cleanMsgParams)
+    // tells the listener that the message has been decrypted and can be returned to the dapp
+    this.decryptMessageManager.setMsgStatusDecrypted(msgId, rawMess)
+  } catch (error) {
+    log.info('MetaMaskController - eth_decrypt failed.', error)
+    this.decryptMessageManager.errorMessage(msgId, error)
+  }
+  return this.getState()
+}
+
+/**
+ * Used to cancel a eth_decrypt type message.
+ * @param {string} msgId - The ID of the message to cancel.
+ * @param {Function} cb - The callback function called with a full state update.
+ */
+cancelDecryptMessage (msgId, cb) {
+  const messageManager = this.decryptMessageManager
+  messageManager.rejectMsg(msgId)
+  if (cb && typeof cb === 'function') {
+    cb(null, this.getState())
+  }
+}
+
+  // eth_getEncryptionPublicKey methods
+
+  /**
+  * Called when a dapp uses the eth_getEncryptionPublicKey method.
+  *
+  * @param {Object} msgParams - The params of the message to sign & return to the Dapp.
+  * @param {Object} req - (optional) the original request, containing the origin
+  * Passed back to the requesting Dapp.
+  */
+ async newRequestEncryptionPublicKey (msgParams, req) {
+  const promise = this.encryptionPublicKeyManager.addUnapprovedMessageAsync(msgParams, req)
+  this.sendUpdate()
+  this.opts.showUnconfirmedMessage()
+  return promise
+}
+
+/**
+* Signifies a user's approval to receiving encryption public key in queue.
+* Triggers receiving, and the callback function from newUnsignedEncryptionPublicKey.
+*
+* @param {Object} msgParams - The params of the message to receive & return to the Dapp.
+* @returns {Promise<Object>} - A full state update.
+*/
+async encryptionPublicKey (msgParams) {
+  log.info('MetaMaskController - encryptionPublicKey')
+  const msgId = msgParams.metamaskId
+  // sets the status op the message to 'approved'
+  // and removes the metamaskId for decryption
+  try {
+    const params = await this.encryptionPublicKeyManager.approveMessage(msgParams)
+
+    // EncryptionPublicKey message
+    const publicKey = await this.keyringController.getEncryptionPublicKey(params.data)
+
+    // tells the listener that the message has been processed
+    // and can be returned to the dapp
+    this.encryptionPublicKeyManager.setMsgStatusReceived(msgId, publicKey)
+  } catch (error) {
+    log.info('MetaMaskController - eth_getEncryptionPublicKey failed.', error)
+    this.encryptionPublicKeyManager.errorMessage(msgId, error)
+  }
+  return this.getState()
+}
+
+/**
+ * Used to cancel a eth_getEncryptionPublicKey type message.
+ * @param {string} msgId - The ID of the message to cancel.
+ * @param {Function} cb - The callback function called with a full state update.
+ */
+cancelEncryptionPublicKey (msgId, cb) {
+  const messageManager = this.encryptionPublicKeyManager
+  messageManager.rejectMsg(msgId)
+  if (cb && typeof cb === 'function') {
+    cb(null, this.getState())
+  }
+}
+
   // eth_signTypedData methods
 
   /**
@@ -1356,29 +1533,37 @@ module.exports = class MetamaskController extends EventEmitter {
     cb()
   }
 
-//=============================================================================
-// SETUP
-//=============================================================================
+  //=============================================================================
+  // SETUP
+  //=============================================================================
+
+  /**
+   * A runtime.MessageSender object, as provided by the browser:
+   * @see https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/MessageSender
+   * @typedef {Object} MessageSender
+   */
 
   /**
    * Used to create a multiplexed stream for connecting to an untrusted context
    * like a Dapp or other extension.
    * @param {*} connectionStream - The Duplex stream to connect to.
-   * @param {string} originDomain - The domain requesting the stream, which
-   * may trigger a blacklist reload.
+   * @param {MessageSender} sender - The sender of the messages on this stream
    */
-  setupUntrustedCommunication (connectionStream, originDomain) {
-    // Check if new connection is blacklisted
-    if (this.blacklistController.checkForPhishing(originDomain)) {
-      log.debug('Nifty Wallet - sending phishing warning for', originDomain)
-      this.sendPhishingWarning(connectionStream, originDomain)
+  setupUntrustedCommunication (connectionStream, sender) {
+    const { usePhishDetect } = this.preferencesController.store.getState()
+    const hostname = (new URL(sender.url)).hostname
+    // Check if new connection is blacklisted if phishing detection is on
+    if (usePhishDetect && this.phishingController.test(hostname)) {
+      log.debug('Nifty Wallet - sending phishing warning for', hostname)
+      this.sendPhishingWarning(connectionStream, hostname)
       return
     }
 
     // setup multiplexing
     const mux = setupMultiplex(connectionStream)
-    // connect features
-    this.setupProviderConnection(mux.createStream('provider'), originDomain)
+
+    // messages between inpage and background
+    this.setupProviderConnection(mux.createStream('provider'), sender)
     this.setupPublicConfig(mux.createStream('publicConfig'))
   }
 
@@ -1389,15 +1574,14 @@ module.exports = class MetamaskController extends EventEmitter {
    * functions, like the ability to approve transactions or sign messages.
    *
    * @param {*} connectionStream - The duplex stream to connect to.
-   * @param {string} originDomain - The domain requesting the connection,
-   * used in logging and error reporting.
+   * @param {MessageSender} sender - The sender of the messages on this stream
    */
-  setupTrustedCommunication (connectionStream, originDomain) {
+  setupTrustedCommunication (connectionStream, sender) {
     // setup multiplexing
     const mux = setupMultiplex(connectionStream)
     // connect features
     this.setupControllerConnection(mux.createStream('controller'))
-    this.setupProviderConnection(mux.createStream('provider'), originDomain)
+    this.setupProviderConnection(mux.createStream('provider'), sender, true)
   }
 
   /**
@@ -1421,9 +1605,7 @@ module.exports = class MetamaskController extends EventEmitter {
    */
   setupControllerConnection (outStream) {
     const api = this.getApi()
-    const dnode = Dnode(api, {
-      weak: false,
-    })
+    const dnode = Dnode(api)
     // report new active controller connection
     this.activeControllerConnections++
     this.emit('controllerConnectionChanged', this.activeControllerConnections)
@@ -1437,8 +1619,10 @@ module.exports = class MetamaskController extends EventEmitter {
         this.activeControllerConnections--
         this.emit('controllerConnectionChanged', this.activeControllerConnections)
         // report any error
-        if (err) log.error(err)
-      }
+        if (err) {
+          log.error(err)
+        }
+      },
     )
     dnode.on('remote', (remote) => {
       // push updates to popup
@@ -1452,9 +1636,57 @@ module.exports = class MetamaskController extends EventEmitter {
   /**
    * A method for serving our ethereum provider over a given stream.
    * @param {*} outStream - The stream to provide over.
-   * @param {string} origin - The URI of the requesting resource.
+   * @param {MessageSender} sender - The sender of the messages on this stream
+   * @param {boolean} isInternal - True if this is a connection with an internal process
    */
-  setupProviderConnection (outStream, origin) {
+  setupProviderConnection (outStream, sender, isInternal) {
+    const origin = isInternal
+      ? 'metamask'
+      : (new URL(sender.url)).hostname
+    let extensionId
+    if (sender.id !== extension.runtime.id) {
+      extensionId = sender.id
+    }
+    let tabId
+    if (sender.tab && sender.tab.id) {
+      tabId = sender.tab.id
+    }
+
+    const engine = this.setupProviderEngine({ origin, location: sender.url, extensionId, tabId })
+
+    // setup connection
+    const providerStream = createEngineStream({ engine })
+
+    const connectionId = this.addConnection(origin, { engine })
+
+    pump(
+      outStream,
+      providerStream,
+      outStream,
+      (err) => {
+        // handle any middleware cleanup
+        engine._middleware.forEach((mid) => {
+          if (mid.destroy && typeof mid.destroy === 'function') {
+            mid.destroy()
+          }
+        })
+        connectionId && this.removeConnection(origin, connectionId)
+        if (err) {
+          log.error(err)
+        }
+      },
+    )
+  }
+
+  /**
+   * A method for creating a provider that is safely restricted for the requesting domain.
+   * @param {Object} options - Provider engine options
+   * @param {string} options.origin - The hostname of the sender
+   * @param {string} options.location - The full URL of the sender
+   * @param {extensionId} [options.extensionId] - The extension ID of the sender, if the sender is an external extension
+   * @param {tabId} [options.tabId] - The tab ID of the sender - if the sender is within a tab
+   **/
+  setupProviderEngine ({ origin, location, extensionId, tabId }) {
     // setup json rpc engine stack
     const engine = new RpcEngine()
     const provider = this.provider
@@ -1462,12 +1694,18 @@ module.exports = class MetamaskController extends EventEmitter {
 
     // create filter polyfill middleware
     const filterMiddleware = createFilterMiddleware({ provider, blockTracker })
+
     // create subscription polyfill middleware
     const subscriptionManager = createSubscriptionManager({ provider, blockTracker })
     subscriptionManager.events.on('notification', (message) => engine.emit('notification', message))
 
-    // metadata
+    // append origin to each request
     engine.push(createOriginMiddleware({ origin }))
+    // append tabId to each request if it exists
+    if (tabId) {
+      engine.push(createTabIdMiddleware({ tabId }))
+    }
+    // logging
     engine.push(createLoggerMiddleware({ origin }))
     // filter and subscription polyfills
     engine.push(filterMiddleware)
@@ -1479,21 +1717,8 @@ module.exports = class MetamaskController extends EventEmitter {
     engine.push(this.createTypedDataMiddleware('eth_signTypedData_v1', 'V1').bind(this))
     engine.push(this.createTypedDataMiddleware('eth_signTypedData_v3', 'V3', true).bind(this))
     // forward to metamask primary provider
-    engine.push(createProviderMiddleware({ provider }))
-
-    // setup connection
-    const providerStream = createEngineStream({ engine })
-
-    pump(
-      outStream,
-      providerStream,
-      outStream,
-      (err) => {
-        // cleanup filter polyfill middleware
-        filterMiddleware.destroy()
-        if (err) log.error(err)
-      }
-    )
+    engine.push(providerAsMiddleware(provider))
+    return engine
   }
 
   /**
@@ -1507,17 +1732,113 @@ module.exports = class MetamaskController extends EventEmitter {
    * @param {*} outStream - The stream to provide public config over.
    */
   setupPublicConfig (outStream) {
-    const configStream = asStream(this.publicConfigStore)
+    const configStore = this.createPublicConfigStore()
+    const configStream = asStream(configStore)
+
     pump(
       configStream,
       outStream,
       (err) => {
+        configStore.destroy()
         configStream.destroy()
-        if (err) log.error(err)
-      }
+        if (err) {
+          log.error(err)
+        }
+      },
     )
   }
 
+  /**
+   * Adds a reference to a connection by origin. Ignores the 'metamask' origin.
+   * Caller must ensure that the returned id is stored such that the reference
+   * can be deleted later.
+   *
+   * @param {string} origin - The connection's origin string.
+   * @param {Object} options - Data associated with the connection
+   * @param {Object} options.engine - The connection's JSON Rpc Engine
+   * @returns {string} - The connection's id (so that it can be deleted later)
+   */
+  addConnection (origin, { engine }) {
+
+    if (origin === 'metamask') {
+      return null
+    }
+
+    if (!this.connections[origin]) {
+      this.connections[origin] = {}
+    }
+
+    const id = nanoid()
+    this.connections[origin][id] = {
+      engine,
+    }
+
+    return id
+  }
+
+  /**
+   * Deletes a reference to a connection, by origin and id.
+   * Ignores unknown origins.
+   *
+   * @param {string} origin - The connection's origin string.
+   * @param {string} id - The connection's id, as returned from addConnection.
+   */
+  removeConnection (origin, id) {
+
+    const connections = this.connections[origin]
+    if (!connections) {
+      return
+    }
+
+    delete connections[id]
+
+    if (Object.keys(connections.length === 0)) {
+      delete this.connections[origin]
+    }
+  }
+
+  /**
+   * Causes the RPC engines associated with the connections to the given origin
+   * to emit a notification event with the given payload.
+   * Does nothing if the extension is locked or the origin is unknown.
+   *
+   * @param {string} origin - The connection's origin string.
+   * @param {any} payload - The event payload.
+   */
+  notifyConnections (origin, payload) {
+
+    const { isUnlocked } = this.getState()
+    const connections = this.connections[origin]
+    if (!isUnlocked || !connections) {
+      return
+    }
+
+    Object.values(connections).forEach((conn) => {
+      conn.engine && conn.engine.emit('notification', payload)
+    })
+  }
+
+  /**
+   * Causes the RPC engines associated with all connections to emit a
+   * notification event with the given payload.
+   * Does nothing if the extension is locked.
+   *
+   * @param {any} payload - The event payload.
+   */
+  notifyAllConnections (payload) {
+
+    const { isUnlocked } = this.getState()
+    if (!isUnlocked) {
+      return
+    }
+
+    Object.values(this.connections).forEach((origin) => {
+      Object.values(origin).forEach((conn) => {
+        conn.engine && conn.engine.emit('notification', payload)
+      })
+    })
+  }
+
   /**
    * Handle a KeyringController update
    * @param {object} state the KC state
@@ -1554,6 +1875,13 @@ module.exports = class MetamaskController extends EventEmitter {
     this.emit('update', this.getState())
   }
 
+  /**
+   * @returns {boolean} Whether the extension is unlocked.
+   */
+  isUnlocked () {
+    return this.keyringController.memStore.getState().isUnlocked
+  }
+
   /**
    * A method for estimating a good gas price
    * For ETH, ETC: from gas price oracles
@@ -1787,6 +2115,20 @@ module.exports = class MetamaskController extends EventEmitter {
     }
   }
 
+  /**
+   * Sets whether or not to use phishing detection.
+   * @param {boolean} val
+   * @param {Function} cb
+   */
+  setUsePhishDetect (val, cb) {
+    try {
+      this.preferencesController.setUsePhishDetect(val)
+      cb(null)
+    } catch (err) {
+      cb(err)
+    }
+  }
+
   /**
    * A method for setting a user's current locale, affecting the language rendered.
    * @param {string} key - Locale identifier.
@@ -1837,7 +2179,7 @@ module.exports = class MetamaskController extends EventEmitter {
    */
   set isClientOpen (open) {
     this._isClientOpen = open
-    this.isClientOpenAndUnlocked = this.getState().isUnlocked && open
+    this.isClientOpenAndUnlocked = this.isUnlocked() && open
     this.detectTokensController.isOpen = open
   }
 
@@ -1881,11 +2223,11 @@ module.exports = class MetamaskController extends EventEmitter {
     }
   }
 
-  /**
-   * Adds a domain to the {@link BlacklistController} whitelist
-   * @param {string} hostname the domain to whitelist
+    /**
+   * Adds a domain to the PhishingController whitelist
+   * @param {string} hostname - the domain to whitelist
    */
   whitelistPhishingDomain (hostname) {
-    return this.blacklistController.whitelistDomain(hostname)
+    return this.phishingController.bypass(hostname)
   }
 }
diff --git a/app/scripts/platforms/extension.js b/app/scripts/platforms/extension.js
index 374cb0947..c7258117f 100644
--- a/app/scripts/platforms/extension.js
+++ b/app/scripts/platforms/extension.js
@@ -1,6 +1,7 @@
-const extension = require('extensionizer')
+import extension from 'extensionizer'
 const explorerLinks = require('eth-net-props').explorerLinks
-const { capitalizeFirstLetter } = require('../lib/util')
+const { capitalizeFirstLetter, getEnvironmentType, checkForError } = require('../lib/util')
+const { ENVIRONMENT_TYPE_BACKGROUND } = require('../lib/enums')
 
 class ExtensionPlatform {
 
@@ -57,6 +58,9 @@ class ExtensionPlatform {
       extensionURL += `#${route}`
     }
     this.openWindow({ url: extensionURL })
+    if (getEnvironmentType() !== ENVIRONMENT_TYPE_BACKGROUND) {
+      window.close()
+    }
   }
 
   getPlatformInfo (cb) {
@@ -70,15 +74,57 @@ class ExtensionPlatform {
   }
 
   showTransactionNotification (txMeta) {
+    const { status, txReceipt: { status: receiptStatus } = {} } = txMeta
 
-    const status = txMeta.status
     if (status === 'confirmed') {
-      this._showConfirmedTransaction(txMeta)
+      // There was an on-chain failure
+      receiptStatus === '0x0'
+        ? this._showFailedTransaction(txMeta, 'Transaction encountered an error.')
+        : this._showConfirmedTransaction(txMeta)
     } else if (status === 'failed') {
       this._showFailedTransaction(txMeta)
     }
   }
 
+  currentTab () {
+    return new Promise((resolve, reject) => {
+      extension.tabs.getCurrent((tab) => {
+        const err = checkForError()
+        if (err) {
+          reject(err)
+        } else {
+          resolve(tab)
+        }
+      })
+    })
+  }
+
+  switchToTab (tabId) {
+    return new Promise((resolve, reject) => {
+      extension.tabs.update(tabId, { highlighted: true }, (tab) => {
+        const err = checkForError()
+        if (err) {
+          reject(err)
+        } else {
+          resolve(tab)
+        }
+      })
+    })
+  }
+
+  closeTab (tabId) {
+    return new Promise((resolve, reject) => {
+      extension.tabs.remove(tabId, () => {
+        const err = checkForError()
+        if (err) {
+          reject(err)
+        } else {
+          resolve()
+        }
+      })
+    })
+  }
+
   _showConfirmedTransaction (txMeta) {
 
     this._subscribeToNotificationClicked()
@@ -91,11 +137,11 @@ class ExtensionPlatform {
     this._showNotification(title, message, url)
   }
 
-  _showFailedTransaction (txMeta) {
+  _showFailedTransaction (txMeta, errorMessage) {
 
     const nonce = parseInt(txMeta.txParams.nonce, 16)
     const title = 'Failed transaction'
-    const message = `Transaction ${nonce} failed! ${capitalizeFirstLetter(txMeta.err.message)}`
+    const message = `Transaction ${nonce} failed! ${errorMessage || capitalizeFirstLetter(txMeta.err.message)}`
     this._showNotification(title, message)
   }
 
@@ -103,10 +149,10 @@ class ExtensionPlatform {
     extension.notifications.create(
       url,
       {
-      'type': 'basic',
-      'title': title,
-      'iconUrl': extension.extension.getURL('../../images/icon-64.png'),
-      'message': message,
+        'type': 'basic',
+        'title': title,
+        'iconUrl': extension.extension.getURL('../../images/icon-64.png'),
+        'message': message,
       })
   }
 
@@ -131,7 +177,6 @@ class ExtensionPlatform {
       url: explorerLinks.getExplorerTxLinkFor(hash, networkId),
     }
   }
-
 }
 
 module.exports = ExtensionPlatform
diff --git a/development/mock-dev.js b/development/mock-dev.js
index f3d4df497..45a435443 100644
--- a/development/mock-dev.js
+++ b/development/mock-dev.js
@@ -151,6 +151,6 @@ function startApp () {
         }),
       ]),
 
-    ]
+    ],
   ), container)
 }
diff --git a/development/ui-dev.js b/development/ui-dev.js
index c47c3fcce..0c38825dd 100644
--- a/development/ui-dev.js
+++ b/development/ui-dev.js
@@ -90,7 +90,7 @@ function startApp () {
         }),
       ]),
 
-    ]
+    ],
   ), container)
 }
 
diff --git a/development/uiStore.js b/development/uiStore.js
index c71d66d3b..1471d717d 100644
--- a/development/uiStore.js
+++ b/development/uiStore.js
@@ -10,7 +10,7 @@ const loggerMiddleware = createLogger()
 
 const createStoreWithMiddleware = applyMiddleware(
   thunkMiddleware,
-  loggerMiddleware
+  loggerMiddleware,
 )(createStore)
 
 function configureStore (initialState) {
diff --git a/gentests.js b/gentests.js
index 9c591e98c..747953801 100644
--- a/gentests.js
+++ b/gentests.js
@@ -121,10 +121,10 @@ async function startContainer (fileRegEx, testGenerator) {
           await promisify(fs.writeFile)(
             `${__dirname}/${sRootPath}tests/${testFilePath}`,
             containerTest,
-            'utf8'
+            'utf8',
           )
         }
-      }
+      },
     )
   }, (err) => {
     console.log('123', err)
diff --git a/gulpfile.js b/gulpfile.js
index 13c5f7f08..def764fd4 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -200,16 +200,16 @@ gulp.task('copy',
     gulp.parallel(...copyTaskNames),
     'manifest:production',
     'manifest:chrome',
-    'manifest:opera'
-  )
+    'manifest:opera',
+  ),
 )
 
 gulp.task('dev:copy',
   gulp.series(
     gulp.parallel(...copyDevTaskNames),
     'manifest:chrome',
-    'manifest:opera'
-  )
+    'manifest:opera',
+  ),
 )
 
 gulp.task('lint-scss', function () {
@@ -328,9 +328,9 @@ gulp.task('dev',
       'dev:extension:js',
       'dev:mascara:js',
       'dev:copy',
-      'dev:reload'
-    )
-  )
+      'dev:reload',
+    ),
+  ),
 )
 
 gulp.task('dev:extension',
@@ -339,9 +339,9 @@ gulp.task('dev:extension',
     gulp.parallel(
       'dev:extension:js',
       'dev:copy',
-      'dev:reload'
-    )
-  )
+      'dev:reload',
+    ),
+  ),
 )
 
 gulp.task('dev:mascara',
@@ -350,9 +350,9 @@ gulp.task('dev:mascara',
     gulp.parallel(
       'dev:mascara:js',
       'dev:copy',
-      'dev:reload'
-    )
-  )
+      'dev:reload',
+    ),
+  ),
 )
 
 gulp.task('build',
@@ -361,9 +361,9 @@ gulp.task('build',
     gulpParallel(
       'build:extension:js',
       'build:mascara:js',
-      'copy'
-    )
-  )
+      'copy',
+    ),
+  ),
 )
 
 gulp.task('build:extension',
@@ -371,9 +371,9 @@ gulp.task('build:extension',
     'clean',
     gulp.parallel(
       'build:extension:js',
-      'copy'
-    )
-  )
+      'copy',
+    ),
+  ),
 )
 
 gulp.task('build:mascara',
@@ -381,16 +381,16 @@ gulp.task('build:mascara',
     'clean',
     gulp.parallel(
       'build:mascara:js',
-      'copy'
-    )
-  )
+      'copy',
+    ),
+  ),
 )
 
 gulp.task('dist',
   gulp.series(
     'build',
-    'zip'
-  )
+    'zip',
+  ),
 )
 
 // task generators
diff --git a/mascara/src/app/buy-ether-widget/index.js b/mascara/src/app/buy-ether-widget/index.js
index ed6f260f4..4bac14148 100644
--- a/mascara/src/app/buy-ether-widget/index.js
+++ b/mascara/src/app/buy-ether-widget/index.js
@@ -194,5 +194,5 @@ export default connect(
   dispatch => ({
     goToCoinbase: address => dispatch(buyEth({ network: '1', address, amount: 0 })),
     showAccountDetail: address => dispatch(showAccountDetail(address)),
-  })
+  }),
 )(BuyEtherWidget)
diff --git a/mascara/src/app/first-time/buy-ether-screen.js b/mascara/src/app/first-time/buy-ether-screen.js
index 398b6f1b1..65589b7d4 100644
--- a/mascara/src/app/first-time/buy-ether-screen.js
+++ b/mascara/src/app/first-time/buy-ether-screen.js
@@ -196,5 +196,5 @@ export default connect(
   dispatch => ({
     goToCoinbase: address => dispatch(buyEth({ network: '1', address, amount: 0 })),
     showAccountDetail: address => dispatch(showAccountDetail(address)),
-  })
+  }),
 )(BuyEtherScreen)
diff --git a/mascara/src/app/first-time/confirm-seed-screen.js b/mascara/src/app/first-time/confirm-seed-screen.js
index dfbaffe33..a827d82e2 100644
--- a/mascara/src/app/first-time/confirm-seed-screen.js
+++ b/mascara/src/app/first-time/confirm-seed-screen.js
@@ -157,6 +157,6 @@ export default compose(
     dispatch => ({
       confirmSeedWords: () => dispatch(confirmSeedWords()),
       openBuyEtherModal: () => dispatch(showModal({ name: 'DEPOSIT_ETHER'})),
-    })
-  )
+    }),
+  ),
 )(ConfirmSeedScreen)
diff --git a/mascara/src/app/first-time/create-password-screen.js b/mascara/src/app/first-time/create-password-screen.js
index 9d0cfe530..24de839a7 100644
--- a/mascara/src/app/first-time/create-password-screen.js
+++ b/mascara/src/app/first-time/create-password-screen.js
@@ -210,6 +210,6 @@ export default compose(
     mapStateToProps,
     dispatch => ({
       createAccount: password => dispatch(createNewVaultAndKeychain(password)),
-    })
-  )
+    }),
+  ),
 )(CreatePasswordScreen)
diff --git a/mascara/src/app/first-time/import-account-screen.js b/mascara/src/app/first-time/import-account-screen.js
index d3aed4f7f..b9b137277 100644
--- a/mascara/src/app/first-time/import-account-screen.js
+++ b/mascara/src/app/first-time/import-account-screen.js
@@ -210,5 +210,5 @@ export default connect(
   dispatch => ({
     importNewAccount: (strategy, args) => dispatch(importNewAccount(strategy, args)),
     hideWarning: () => dispatch(hideWarning()),
-  })
+  }),
 )(ImportAccountScreen)
diff --git a/mascara/src/app/first-time/import-seed-phrase-screen.js b/mascara/src/app/first-time/import-seed-phrase-screen.js
index 883893e88..b47a30920 100644
--- a/mascara/src/app/first-time/import-seed-phrase-screen.js
+++ b/mascara/src/app/first-time/import-seed-phrase-screen.js
@@ -186,5 +186,5 @@ export default connect(
       dispatch(unMarkPasswordForgotten())
     },
     createNewVaultAndRestore: (pw, seed) => dispatch(createNewVaultAndRestore(pw, seed)),
-  })
+  }),
 )(ImportSeedPhraseScreen)
diff --git a/mascara/src/app/first-time/index.js b/mascara/src/app/first-time/index.js
index 6e4dc74bb..f08e24c85 100644
--- a/mascara/src/app/first-time/index.js
+++ b/mascara/src/app/first-time/index.js
@@ -95,5 +95,5 @@ const mapStateToProps = ({ metamask }) => {
 
 export default compose(
   withRouter,
-  connect(mapStateToProps)
+  connect(mapStateToProps),
 )(FirstTimeFlow)
diff --git a/mascara/src/app/first-time/notice-screen.js b/mascara/src/app/first-time/notice-screen.js
index 8cb6f1057..b04dd3be9 100644
--- a/mascara/src/app/first-time/notice-screen.js
+++ b/mascara/src/app/first-time/notice-screen.js
@@ -130,6 +130,6 @@ export default compose(
     mapStateToProps,
     dispatch => ({
       markNoticeRead: notice => dispatch(markNoticeRead(notice)),
-    })
-  )
+    }),
+  ),
 )(NoticeScreen)
diff --git a/mascara/src/app/first-time/seed-screen.js b/mascara/src/app/first-time/seed-screen.js
index 97d5d7930..4579e045f 100644
--- a/mascara/src/app/first-time/seed-screen.js
+++ b/mascara/src/app/first-time/seed-screen.js
@@ -171,6 +171,6 @@ export default compose(
       seedWords,
       isLoading,
       address: selectedAddress,
-    })
-  )
+    }),
+  ),
 )(BackupPhraseScreen)
diff --git a/mascara/src/app/first-time/unique-image-screen.js b/mascara/src/app/first-time/unique-image-screen.js
index 9555e5318..e1f9299bb 100644
--- a/mascara/src/app/first-time/unique-image-screen.js
+++ b/mascara/src/app/first-time/unique-image-screen.js
@@ -45,6 +45,6 @@ export default compose(
   connect(
     ({ metamask: { selectedAddress } }) => ({
       address: selectedAddress,
-    })
-  )
+    }),
+  ),
 )(UniqueImageScreen)
diff --git a/mascara/src/app/shapeshift-form/index.js b/mascara/src/app/shapeshift-form/index.js
index 6f3307487..91c2b36d0 100644
--- a/mascara/src/app/shapeshift-form/index.js
+++ b/mascara/src/app/shapeshift-form/index.js
@@ -214,5 +214,5 @@ export default connect(
     shapeShiftSubview: () => dispatch(shapeShiftSubview()),
     pairUpdate: coin => dispatch(pairUpdate(coin)),
     buyWithShapeShift: data => dispatch(buyWithShapeShift(data)),
-  })
+  }),
 )(ShapeShiftForm)
diff --git a/old-ui/app/account-detail.js b/old-ui/app/account-detail.js
index e67f001c9..53dc79c74 100644
--- a/old-ui/app/account-detail.js
+++ b/old-ui/app/account-detail.js
@@ -144,7 +144,7 @@ AccountDetailScreen.prototype.render = function () {
                       }, [
                         identity && identity.name,
                       ]),
-                    ]
+                    ],
                   ),
                   h(
                     AccountDropdowns,
@@ -161,7 +161,7 @@ AccountDetailScreen.prototype.render = function () {
                       enableAccountOptions: true,
                     },
                   ),
-                ]
+                ],
               ),
             ]),
             h('.flex-row', {
diff --git a/old-ui/app/app.js b/old-ui/app/app.js
index dfb079f7f..873036f4c 100644
--- a/old-ui/app/app.js
+++ b/old-ui/app/app.js
@@ -50,7 +50,7 @@ const { getNetworkID } = require('./util')
 
 module.exports = compose(
   withRouter,
-  connect(mapStateToProps)
+  connect(mapStateToProps),
 )(App)
 
 inherits(App, Component)
diff --git a/old-ui/app/components/account-export.js b/old-ui/app/components/account-export.js
index 4d11f2093..2fa76415a 100644
--- a/old-ui/app/components/account-export.js
+++ b/old-ui/app/components/account-export.js
@@ -92,7 +92,7 @@ ExportAccountView.prototype.render = function () {
             }},
             [
               h('div.error', this.props.warning.split('-')),
-            ]
+            ],
           )
         ),
         ])
@@ -134,7 +134,7 @@ ExportAccountView.prototype.render = function () {
             },
           }, h(CopyButton, {
             value: accountDetail.privateKey,
-          })
+          }),
         ),
       ]),
       h('div', {
diff --git a/old-ui/app/components/confirm-add-token/token-balance/token-balance.container.js b/old-ui/app/components/confirm-add-token/token-balance/token-balance.container.js
index a16631616..b27f3eca5 100644
--- a/old-ui/app/components/confirm-add-token/token-balance/token-balance.container.js
+++ b/old-ui/app/components/confirm-add-token/token-balance/token-balance.container.js
@@ -12,5 +12,5 @@ const mapStateToProps = state => {
 
 export default compose(
   connect(mapStateToProps),
-  withTokenTracker
+  withTokenTracker,
 )(TokenBalance)
diff --git a/old-ui/app/components/connect-hardware/account-list.js b/old-ui/app/components/connect-hardware/account-list.js
index 5f5e44d36..f568c8380 100644
--- a/old-ui/app/components/connect-hardware/account-list.js
+++ b/old-ui/app/components/connect-hardware/account-list.js
@@ -96,7 +96,7 @@ class AccountList extends Component {
                 >{`${a.balance}`}</span>
               </label>
             </div>
-          </div>
+          </div>,
         )
       })
 
diff --git a/old-ui/app/components/custom-radio-list.js b/old-ui/app/components/custom-radio-list.js
index 6f5c772b6..d46f050f0 100644
--- a/old-ui/app/components/custom-radio-list.js
+++ b/old-ui/app/components/custom-radio-list.js
@@ -40,7 +40,7 @@ RadioList.prototype.render = function () {
               props.onClick(event)
             },
           })
-        })
+        }),
       ),
       h('.text', {},
         labels.map((label) => {
@@ -52,7 +52,7 @@ RadioList.prototype.render = function () {
           } else {
             return h('.radio-titles.font-pre-medium', label)
           }
-        })
+        }),
       ),
     ])
   )
diff --git a/old-ui/app/components/pending-tx.js b/old-ui/app/components/pending-tx.js
index 0a447b162..6441ac939 100644
--- a/old-ui/app/components/pending-tx.js
+++ b/old-ui/app/components/pending-tx.js
@@ -218,7 +218,7 @@ PendingTx.prototype.render = function () {
                   },
                   onClick: () => props.dispatch(actions.nextTx()),
                 }),
-              ])]
+              ])],
             ),
 
             h(MiniAccountPanel, {
diff --git a/old-ui/app/components/send/send-token.js b/old-ui/app/components/send/send-token.js
index d2068499b..4eb0bb80d 100644
--- a/old-ui/app/components/send/send-token.js
+++ b/old-ui/app/components/send/send-token.js
@@ -267,7 +267,7 @@ class SendTransactionScreen extends PersistentForm {
     const abi = require('ethereumjs-abi')
     return TOKEN_TRANSFER_FUNCTION_SIGNATURE + Array.prototype.map.call(
       abi.rawEncode(['address', 'uint256'], [toAddress, ethUtil.addHexPrefix(amount)]),
-      x => ('00' + x.toString(16)).slice(-2)
+      x => ('00' + x.toString(16)).slice(-2),
     ).join('')
   }
 
@@ -305,7 +305,7 @@ const mapDispatchToProps = dispatch => {
       toAddress,
       tokensValueWithDec,
       txParams,
-      confTxScreenParams
+      confTxScreenParams,
     ) => dispatch(actions.signTokenTx(tokenAddress, toAddress, tokensValueWithDec, txParams, confTxScreenParams)),
   }
 }
diff --git a/old-ui/app/components/token-cell.js b/old-ui/app/components/token-cell.js
index c0aa60b95..aea569b9d 100644
--- a/old-ui/app/components/token-cell.js
+++ b/old-ui/app/components/token-cell.js
@@ -66,7 +66,7 @@ TokenCell.prototype.render = function () {
             })
           },
         },
-        this.renderTokenOptions(menuToTop, ind)
+        this.renderTokenOptions(menuToTop, ind),
       ),
 
       /*
@@ -147,7 +147,7 @@ TokenCell.prototype.renderTokenOptions = function (menuToTop, ind) {
         },
         'Remove',
       ),
-    ]
+    ],
   )
 }
 
diff --git a/old-ui/app/config.js b/old-ui/app/config.js
index 57d56c309..78068b04a 100644
--- a/old-ui/app/config.js
+++ b/old-ui/app/config.js
@@ -318,7 +318,7 @@ class ConfigScreen extends Component {
         defaultValue: currentCurrency,
       }, infuraCurrencies.map((currency) => {
         return h('option', {key: currency.quote.code, value: currency.quote.code}, `${currency.quote.code.toUpperCase()} - ${currency.quote.name}`)
-      })
+      }),
     ),
     ])
   }
diff --git a/package-lock.json b/package-lock.json
index 2327bc4c1..30ed148cf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,24 +14,24 @@
       }
     },
     "@babel/compat-data": {
-      "version": "7.8.6",
-      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.8.6.tgz",
-      "integrity": "sha512-CurCIKPTkS25Mb8mz267vU95vy+TyUpnctEX2lV33xWNmHAfjruztgiPBbXZRh3xZZy1CYvGx6XfxyTVS+sk7Q==",
+      "version": "7.9.0",
+      "resolved": "https://registry.npmjs.org/@babel/compat-data/-/compat-data-7.9.0.tgz",
+      "integrity": "sha512-zeFQrr+284Ekvd9e7KAX954LkapWiOmQtsfHirhxqfdlX6MEC32iRE+pqUGlYIBchdevaCwvzxWGSy/YBNI85g==",
       "dev": true,
       "requires": {
-        "browserslist": "^4.8.5",
+        "browserslist": "^4.9.1",
         "invariant": "^2.2.4",
         "semver": "^5.5.0"
       },
       "dependencies": {
         "browserslist": {
-          "version": "4.10.0",
-          "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.10.0.tgz",
-          "integrity": "sha512-TpfK0TDgv71dzuTsEAlQiHeWQ/tiPqgNZVdv046fvNtBZrjbv2O3TsWCDU0AWGJJKCF/KsjNdLzR9hXOsh/CfA==",
+          "version": "4.11.0",
+          "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.11.0.tgz",
+          "integrity": "sha512-WqEC7Yr5wUH5sg6ruR++v2SGOQYpyUdYYd4tZoAq1F7y+QXoLoYGXVbxhtaIqWmAJjtNTRjVD3HuJc1OXTel2A==",
           "dev": true,
           "requires": {
             "caniuse-lite": "^1.0.30001035",
-            "electron-to-chromium": "^1.3.378",
+            "electron-to-chromium": "^1.3.380",
             "node-releases": "^1.1.52",
             "pkg-up": "^3.1.0"
           }
@@ -39,22 +39,23 @@
       }
     },
     "@babel/core": {
-      "version": "7.8.7",
-      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.8.7.tgz",
-      "integrity": "sha512-rBlqF3Yko9cynC5CCFy6+K/w2N+Sq/ff2BPy+Krp7rHlABIr5epbA7OxVeKoMHB39LZOp1UY5SuLjy6uWi35yA==",
+      "version": "7.9.0",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.9.0.tgz",
+      "integrity": "sha512-kWc7L0fw1xwvI0zi8OKVBuxRVefwGOrKSQMvrQ3dW+bIIavBY3/NpXmpjMy7bQnLgwgzWQZ8TlM57YHpHNHz4w==",
       "dev": true,
       "requires": {
         "@babel/code-frame": "^7.8.3",
-        "@babel/generator": "^7.8.7",
-        "@babel/helpers": "^7.8.4",
-        "@babel/parser": "^7.8.7",
+        "@babel/generator": "^7.9.0",
+        "@babel/helper-module-transforms": "^7.9.0",
+        "@babel/helpers": "^7.9.0",
+        "@babel/parser": "^7.9.0",
         "@babel/template": "^7.8.6",
-        "@babel/traverse": "^7.8.6",
-        "@babel/types": "^7.8.7",
+        "@babel/traverse": "^7.9.0",
+        "@babel/types": "^7.9.0",
         "convert-source-map": "^1.7.0",
         "debug": "^4.1.0",
         "gensync": "^1.0.0-beta.1",
-        "json5": "^2.1.0",
+        "json5": "^2.1.2",
         "lodash": "^4.17.13",
         "resolve": "^1.3.2",
         "semver": "^5.4.1",
@@ -94,12 +95,12 @@
       }
     },
     "@babel/generator": {
-      "version": "7.8.8",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.8.8.tgz",
-      "integrity": "sha512-HKyUVu69cZoclptr8t8U5b6sx6zoWjh8jiUhnuj3MpZuKT2dJ8zPTuiy31luq32swhI0SpwItCIlU8XW7BZeJg==",
+      "version": "7.9.4",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.9.4.tgz",
+      "integrity": "sha512-rjP8ahaDy/ouhrvCoU1E5mqaitWrxwuNGU+dy1EpaoK48jZay4MdkskKGIMHLZNewg8sAsqpGSREJwP0zH3YQA==",
       "dev": true,
       "requires": {
-        "@babel/types": "^7.8.7",
+        "@babel/types": "^7.9.0",
         "jsesc": "^2.5.1",
         "lodash": "^4.17.13",
         "source-map": "^0.5.0"
@@ -139,24 +140,24 @@
       }
     },
     "@babel/helper-builder-react-jsx": {
-      "version": "7.8.3",
-      "resolved": "https://registry.npmjs.org/@babel/helper-builder-react-jsx/-/helper-builder-react-jsx-7.8.3.tgz",
-      "integrity": "sha512-JT8mfnpTkKNCboTqZsQTdGo3l3Ik3l7QIt9hh0O9DYiwVel37VoJpILKM4YFbP2euF32nkQSb+F9cUk9b7DDXQ==",
+      "version": "7.9.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-builder-react-jsx/-/helper-builder-react-jsx-7.9.0.tgz",
+      "integrity": "sha512-weiIo4gaoGgnhff54GQ3P5wsUQmnSwpkvU0r6ZHq6TzoSzKy4JxHEgnxNytaKbov2a9z/CVNyzliuCOUPEX3Jw==",
       "dev": true,
       "requires": {
-        "@babel/types": "^7.8.3",
-        "esutils": "^2.0.0"
+        "@babel/helper-annotate-as-pure": "^7.8.3",
+        "@babel/types": "^7.9.0"
       }
     },
-    "@babel/helper-call-delegate": {
-      "version": "7.8.7",
-      "resolved": "https://registry.npmjs.org/@babel/helper-call-delegate/-/helper-call-delegate-7.8.7.tgz",
-      "integrity": "sha512-doAA5LAKhsFCR0LAFIf+r2RSMmC+m8f/oQ+URnUET/rWeEzC0yTRmAGyWkD4sSu3xwbS7MYQ2u+xlt1V5R56KQ==",
+    "@babel/helper-builder-react-jsx-experimental": {
+      "version": "7.9.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-builder-react-jsx-experimental/-/helper-builder-react-jsx-experimental-7.9.0.tgz",
+      "integrity": "sha512-3xJEiyuYU4Q/Ar9BsHisgdxZsRlsShMe90URZ0e6przL26CCs8NJbDoxH94kKT17PcxlMhsCAwZd90evCo26VQ==",
       "dev": true,
       "requires": {
-        "@babel/helper-hoist-variables": "^7.8.3",
-        "@babel/traverse": "^7.8.3",
-        "@babel/types": "^7.8.7"
+        "@babel/helper-annotate-as-pure": "^7.8.3",
+        "@babel/helper-module-imports": "^7.8.3",
+        "@babel/types": "^7.9.0"
       }
     },
     "@babel/helper-compilation-targets": {
@@ -173,13 +174,13 @@
       },
       "dependencies": {
         "browserslist": {
-          "version": "4.10.0",
-          "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.10.0.tgz",
-          "integrity": "sha512-TpfK0TDgv71dzuTsEAlQiHeWQ/tiPqgNZVdv046fvNtBZrjbv2O3TsWCDU0AWGJJKCF/KsjNdLzR9hXOsh/CfA==",
+          "version": "4.11.0",
+          "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.11.0.tgz",
+          "integrity": "sha512-WqEC7Yr5wUH5sg6ruR++v2SGOQYpyUdYYd4tZoAq1F7y+QXoLoYGXVbxhtaIqWmAJjtNTRjVD3HuJc1OXTel2A==",
           "dev": true,
           "requires": {
             "caniuse-lite": "^1.0.30001035",
-            "electron-to-chromium": "^1.3.378",
+            "electron-to-chromium": "^1.3.380",
             "node-releases": "^1.1.52",
             "pkg-up": "^3.1.0"
           }
@@ -310,9 +311,9 @@
       }
     },
     "@babel/helper-module-transforms": {
-      "version": "7.8.6",
-      "resolved": "https://registry.npmjs.org/@babel/helper-module-transforms/-/helper-module-transforms-7.8.6.tgz",
-      "integrity": "sha512-RDnGJSR5EFBJjG3deY0NiL0K9TO8SXxS9n/MPsbPK/s9LbQymuLNtlzvDiNS7IpecuL45cMeLVkA+HfmlrnkRg==",
+      "version": "7.9.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-module-transforms/-/helper-module-transforms-7.9.0.tgz",
+      "integrity": "sha512-0FvKyu0gpPfIQ8EkxlrAydOWROdHpBmiCiRwLkUiBGhCUPRRbVD2/tm3sFr/c/GWFrQ/ffutGUAnx7V0FzT2wA==",
       "dev": true,
       "requires": {
         "@babel/helper-module-imports": "^7.8.3",
@@ -320,7 +321,7 @@
         "@babel/helper-simple-access": "^7.8.3",
         "@babel/helper-split-export-declaration": "^7.8.3",
         "@babel/template": "^7.8.6",
-        "@babel/types": "^7.8.6",
+        "@babel/types": "^7.9.0",
         "lodash": "^4.17.13"
       }
     },
@@ -391,6 +392,11 @@
         "@babel/types": "^7.8.3"
       }
     },
+    "@babel/helper-validator-identifier": {
+      "version": "7.9.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.9.0.tgz",
+      "integrity": "sha512-6G8bQKjOh+of4PV/ThDm/rRqlU7+IGoJuofpagU5GlEl29Vv0RGqqt86ZGRV8ZuSOY3o+8yXl5y782SMcG7SHw=="
+    },
     "@babel/helper-wrap-function": {
       "version": "7.8.3",
       "resolved": "https://registry.npmjs.org/@babel/helper-wrap-function/-/helper-wrap-function-7.8.3.tgz",
@@ -404,24 +410,24 @@
       }
     },
     "@babel/helpers": {
-      "version": "7.8.4",
-      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.8.4.tgz",
-      "integrity": "sha512-VPbe7wcQ4chu4TDQjimHv/5tj73qz88o12EPkO2ValS2QiQS/1F2SsjyIGNnAD0vF/nZS6Cf9i+vW6HIlnaR8w==",
+      "version": "7.9.2",
+      "resolved": "https://registry.npmjs.org/@babel/helpers/-/helpers-7.9.2.tgz",
+      "integrity": "sha512-JwLvzlXVPjO8eU9c/wF9/zOIN7X6h8DYf7mG4CiFRZRvZNKEF5dQ3H3V+ASkHoIB3mWhatgl5ONhyqHRI6MppA==",
       "dev": true,
       "requires": {
         "@babel/template": "^7.8.3",
-        "@babel/traverse": "^7.8.4",
-        "@babel/types": "^7.8.3"
+        "@babel/traverse": "^7.9.0",
+        "@babel/types": "^7.9.0"
       }
     },
     "@babel/highlight": {
-      "version": "7.8.3",
-      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.8.3.tgz",
-      "integrity": "sha512-PX4y5xQUvy0fnEVHrYOarRPXVWafSjTW9T0Hab8gVIawpl2Sj0ORyrygANq+KjcNlSSTw0YCLSNA8OyZ1I4yEg==",
+      "version": "7.9.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.9.0.tgz",
+      "integrity": "sha512-lJZPilxX7Op3Nv/2cvFdnlepPXDxi29wxteT57Q965oc5R9v86ztx0jfxVrTcBk8C2kcPkkDa2Z4T3ZsPPVWsQ==",
       "dev": true,
       "requires": {
+        "@babel/helper-validator-identifier": "^7.9.0",
         "chalk": "^2.0.0",
-        "esutils": "^2.0.2",
         "js-tokens": "^4.0.0"
       },
       "dependencies": {
@@ -457,9 +463,9 @@
       }
     },
     "@babel/parser": {
-      "version": "7.8.8",
-      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.8.8.tgz",
-      "integrity": "sha512-mO5GWzBPsPf6865iIbzNE0AvkKF3NE+2S3eRUpE+FE07BOAkXh6G+GW/Pj01hhXjve1WScbaIO4UlY1JKeqCcA==",
+      "version": "7.9.4",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.9.4.tgz",
+      "integrity": "sha512-bC49otXX6N0/VYhgOMh4gnP26E9xnDZK3TmbNpxYzzz9BQLBosQwfyOe9/cXUU3txYhTzLCbcqd5c8y/OmCjHA==",
       "dev": true
     },
     "@babel/plugin-proposal-async-generator-functions": {
@@ -513,10 +519,20 @@
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+          "version": "2.20.3",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+          "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+          "dev": true
+        },
         "source-map": {
           "version": "0.6.1",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -46515,6 +54265,14 @@
         "tap-parser": "^7.0.0",
         "tmp": "0.0.33",
         "xmldom": "^0.1.19"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "2.20.3",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+          "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+          "dev": true
+        }
       }
     },
     "text-encoding": {
@@ -46987,6 +54745,12 @@
         "source-map": "~0.6.1"
       },
       "dependencies": {
+        "commander": {
+          "version": "2.20.3",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+          "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+          "dev": true
+        },
         "source-map": {
           "version": "0.6.1",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
@@ -48004,15 +55768,15 @@
       "dev": true
     },
     "webpack": {
-      "version": "4.42.0",
-      "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.42.0.tgz",
-      "integrity": "sha512-EzJRHvwQyBiYrYqhyjW9AqM90dE4+s1/XtCfn7uWg6cS72zH+2VPFAlsnW0+W0cDi0XRjNKUMoJtpSi50+Ph6w==",
+      "version": "4.42.1",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.42.1.tgz",
+      "integrity": "sha512-SGfYMigqEfdGchGhFFJ9KyRpQKnipvEvjc1TwrXEPCM6H5Wywu10ka8o3KGrMzSMxMQKt8aCHUFh5DaQ9UmyRg==",
       "dev": true,
       "requires": {
-        "@webassemblyjs/ast": "1.8.5",
-        "@webassemblyjs/helper-module-context": "1.8.5",
-        "@webassemblyjs/wasm-edit": "1.8.5",
-        "@webassemblyjs/wasm-parser": "1.8.5",
+        "@webassemblyjs/ast": "1.9.0",
+        "@webassemblyjs/helper-module-context": "1.9.0",
+        "@webassemblyjs/wasm-edit": "1.9.0",
+        "@webassemblyjs/wasm-parser": "1.9.0",
         "acorn": "^6.2.1",
         "ajv": "^6.10.2",
         "ajv-keywords": "^3.4.1",
@@ -48024,7 +55788,7 @@
         "loader-utils": "^1.2.3",
         "memory-fs": "^0.4.1",
         "micromatch": "^3.1.10",
-        "mkdirp": "^0.5.1",
+        "mkdirp": "^0.5.3",
         "neo-async": "^2.6.1",
         "node-libs-browser": "^2.2.1",
         "schema-utils": "^1.0.0",
@@ -48538,22 +56302,6 @@
       "integrity": "sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==",
       "dev": true
     },
-    "xml2js": {
-      "version": "0.4.23",
-      "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.23.tgz",
-      "integrity": "sha512-ySPiMjM0+pLDftHgXY4By0uswI3SPKLDw/i3UXbnO8M/p28zqexCUoPmQFrYD+/1BzhGJSs2i1ERWKJAtiLrug==",
-      "dev": true,
-      "requires": {
-        "sax": ">=0.6.0",
-        "xmlbuilder": "~11.0.0"
-      }
-    },
-    "xmlbuilder": {
-      "version": "11.0.1",
-      "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-11.0.1.tgz",
-      "integrity": "sha512-fDlsI/kFEx7gLvbecc0/ohLG50fugQp8ryHzMTuW9vSa1GJ0XYWKnhsUx7oie3G98+r56aTQIUB4kht42R3JvA==",
-      "dev": true
-    },
     "xmlcreate": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/xmlcreate/-/xmlcreate-2.0.3.tgz",
@@ -48604,9 +56352,9 @@
       "dev": true
     },
     "yaml": {
-      "version": "1.8.2",
-      "resolved": "https://registry.npmjs.org/yaml/-/yaml-1.8.2.tgz",
-      "integrity": "sha512-omakb0d7FjMo3R1D2EbTKVIk6dAVLRxFXdLZMEUToeAvuqgG/YuHMuQOZ5fgk+vQ8cx+cnGKwyg+8g8PNT0xQg==",
+      "version": "1.8.3",
+      "resolved": "https://registry.npmjs.org/yaml/-/yaml-1.8.3.tgz",
+      "integrity": "sha512-X/v7VDnK+sxbQ2Imq4Jt2PRUsRsP7UcpSl3Llg6+NRRqWLIvxkMFYtH1FmvwNGYRKKPa+EPA4qDBlI9WVG1UKw==",
       "dev": true,
       "requires": {
         "@babel/runtime": "^7.8.7"
diff --git a/package.json b/package.json
index 6fbf6d73a..3c4f20846 100644
--- a/package.json
+++ b/package.json
@@ -111,15 +111,17 @@
     "eth-block-tracker": "^4.4.2",
     "eth-contract-metadata": "^1.12.1",
     "eth-ens-namehash": "^2.0.8",
+    "eth-json-rpc-errors": "^2.0.2",
     "eth-json-rpc-filters": "github:poanetwork/eth-json-rpc-filters#3.0.2",
     "eth-json-rpc-infura": "^4.0.2",
+    "eth-json-rpc-middleware": "^4.4.1",
     "eth-keychain-controller": "github:vbaranov/KeyringController#5.1.0",
     "eth-ledger-bridge-keyring": "github:vbaranov/eth-ledger-bridge-keyring#0.1.0-clear-accounts-flag",
     "eth-method-registry": "^1.0.0",
     "eth-net-props": "^1.0.33",
     "eth-phishing-detect": "^1.1.4",
     "eth-query": "^2.1.2",
-    "eth-sig-util": "^2.2.0",
+    "eth-sig-util": "^2.3.0",
     "eth-token-watcher": "^1.1.7",
     "eth-trezor-keyring": "github:vbaranov/eth-trezor-keyring#0.4.0",
     "ethereumjs-abi": "^0.6.7",
@@ -137,6 +139,7 @@
     "fast-json-patch": "^2.0.4",
     "fast-levenshtein": "^2.0.6",
     "fuse.js": "^3.2.0",
+    "gaba": "^1.9.3",
     "human-standard-token-abi": "^2.0.0",
     "idb-global": "^2.1.0",
     "iframe-stream": "^3.0.0",
@@ -152,7 +155,8 @@
     "metamascara": "^2.0.0",
     "mkdirp": "^0.5.1",
     "multihashes": "^0.4.12",
-    "nifty-wallet-inpage-provider": "git+ssh://git@github.com/poanetwork/nifty-wallet-inpage-provider.git#1.2.3",
+    "nanoid": "^2.1.6",
+    "nifty-wallet-inpage-provider": "github:poanetwork/nifty-wallet-inpage-provider#1.2.3",
     "number-to-bn": "^1.7.0",
     "obj-multiplex": "^1.0.0",
     "obs-store": "^4.0.3",
@@ -192,6 +196,7 @@
     "request-promise": "^4.2.1",
     "reselect": "^3.0.1",
     "rockicon": "^1.0.0",
+    "rpc-cap": "^2.0.0",
     "sandwich-expando": "^1.1.3",
     "semaphore": "^1.0.5",
     "semver": "^5.4.1",
@@ -244,7 +249,6 @@
     "eslint-plugin-json": "^1.2.0",
     "eslint-plugin-mocha": "^6.2.2",
     "eslint-plugin-react": "^7.18.3",
-    "eth-json-rpc-middleware": "^3.1.3",
     "expect": "^25.0.0",
     "fetch-mock": "^6.5.2",
     "file-loader": "^1.1.11",
diff --git a/test/e2e/webdriver/driver.js b/test/e2e/webdriver/driver.js
index 90a4e32a9..ff47801c5 100644
--- a/test/e2e/webdriver/driver.js
+++ b/test/e2e/webdriver/driver.js
@@ -61,7 +61,7 @@ class Driver {
           this.driver.wait(until.elementIsEnabled(element), this.timeout),
         )
         return acc
-      }, [])
+      }, []),
     )
     return elements
   }
diff --git a/test/integration/index.js b/test/integration/index.js
index b266ddf37..881145f6f 100644
--- a/test/integration/index.js
+++ b/test/integration/index.js
@@ -22,5 +22,5 @@ pump(
     if (err) throw err
     console.log(`Integration test build completed: "${bundlePath}"`)
     process.exit(0)
-  }
+  },
 )
diff --git a/test/integration/lib/add-token.js b/test/integration/lib/add-token.js
index 412973147..499f4583c 100644
--- a/test/integration/lib/add-token.js
+++ b/test/integration/lib/add-token.js
@@ -25,7 +25,7 @@ async function runAddTokenFlowTest (assert, done) {
 
   // Used to set values on TextField input component
   const nativeInputValueSetter = Object.getOwnPropertyDescriptor(
-    window.HTMLInputElement.prototype, 'value'
+    window.HTMLInputElement.prototype, 'value',
   ).set
 
   // Check that no tokens have been added
diff --git a/test/integration/lib/mascara-first-time.js b/test/integration/lib/mascara-first-time.js
index dd168f138..add32dbda 100644
--- a/test/integration/lib/mascara-first-time.js
+++ b/test/integration/lib/mascara-first-time.js
@@ -12,7 +12,7 @@ async function runFirstTimeUsageTest (assert, done) {
 
   // Used to set values on TextField input component
   const nativeInputValueSetter = Object.getOwnPropertyDescriptor(
-    window.HTMLInputElement.prototype, 'value'
+    window.HTMLInputElement.prototype, 'value',
   ).set
 
   // const loader = (await findAsync($, '.loading-overlay'))[0]
diff --git a/test/integration/lib/send-new-ui.js b/test/integration/lib/send-new-ui.js
index 1d9a2da6f..fd18880b9 100644
--- a/test/integration/lib/send-new-ui.js
+++ b/test/integration/lib/send-new-ui.js
@@ -42,13 +42,13 @@ async function customizeGas (assert, price, limit, ethFee, usdFee) {
   assert.equal(
     (await findAsync(sendGasField, '.currency-display-component'))[0].textContent,
     ethFee,
-    'send gas field should show customized gas total'
+    'send gas field should show customized gas total',
   )
 
   assert.equal(
     (await findAsync(sendGasField, '.currency-display__converted-value'))[0].textContent,
     usdFee,
-    'send gas field should show customized gas total converted to USD'
+    'send gas field should show customized gas total converted to USD',
   )
 }
 
diff --git a/test/lib/mock-store.js b/test/lib/mock-store.js
index 8af8f6d23..ce7e1b238 100644
--- a/test/lib/mock-store.js
+++ b/test/lib/mock-store.js
@@ -10,7 +10,7 @@ const loggerMiddleware = createLogger()
 
 const createStoreWithMiddleware = applyMiddleware(
   thunkMiddleware,
-  loggerMiddleware
+  loggerMiddleware,
 )(createStore)
 
 function configureStore (initialState) {
diff --git a/test/unit/app/controllers/metamask-controller-test.js b/test/unit/app/controllers/metamask-controller-test.js
index 074cd62b1..48edbeb3c 100644
--- a/test/unit/app/controllers/metamask-controller-test.js
+++ b/test/unit/app/controllers/metamask-controller-test.js
@@ -1,13 +1,23 @@
-const assert = require('assert')
-const sinon = require('sinon')
-const clone = require('clone')
-const nock = require('nock')
-const createThoughStream = require('through2').obj
+import assert from 'assert'
+import sinon from 'sinon'
+import { cloneDeep } from 'lodash'
+import nock from 'nock'
+import { obj as createThoughStream } from 'through2'
 const blacklistJSON = require('eth-phishing-detect/src/config')
-const MetaMaskController = require('../../../../app/scripts/metamask-controller')
 const firstTimeState = require('../../../unit/localhostState')
 const createTxMeta = require('../../../lib/createTxMeta')
-const EthQuery = require('eth-query')
+import EthQuery from 'eth-query'
+import proxyquire from 'proxyquire'
+
+const ExtensionizerMock = {
+  runtime: {
+    id: 'fake-extension-id',
+  },
+}
+
+const MetaMaskController = proxyquire('../../../../app/scripts/metamask-controller', {
+  'extensionizer': ExtensionizerMock,
+})
 
 const currentNetworkId = 42
 const DEFAULT_LABEL = 'Account 1'
@@ -57,7 +67,7 @@ describe('MetaMaskController', function () {
           return Promise.resolve(this.object)
         },
       },
-      initState: clone(firstTimeState),
+      initState: cloneDeep(firstTimeState),
     })
     // disable diagnostics
     metamaskController.diagnostics = null
@@ -372,7 +382,7 @@ describe('MetaMaskController', function () {
       sinon.spy(metamaskController.keyringController, 'addNewKeyring')
       await metamaskController.connectHardware('trezor', 0).catch((e) => null)
       const keyrings = await metamaskController.keyringController.getKeyringsByType(
-        'Trezor Hardware'
+        'Trezor Hardware',
       )
       assert.equal(metamaskController.keyringController.addNewKeyring.getCall(0).args, 'Trezor Hardware')
       assert.equal(keyrings.length, 1)
@@ -382,7 +392,7 @@ describe('MetaMaskController', function () {
       sinon.spy(metamaskController.keyringController, 'addNewKeyring')
       await metamaskController.connectHardware('ledger', 0).catch((e) => null)
       const keyrings = await metamaskController.keyringController.getKeyringsByType(
-        'Ledger Hardware'
+        'Ledger Hardware',
       )
       assert.equal(metamaskController.keyringController.addNewKeyring.getCall(0).args, 'Ledger Hardware')
       assert.equal(keyrings.length, 1)
@@ -419,7 +429,7 @@ describe('MetaMaskController', function () {
       await metamaskController.connectHardware('trezor', 0).catch((e) => null)
       await metamaskController.forgetDevice('trezor')
       const keyrings = await metamaskController.keyringController.getKeyringsByType(
-        'Trezor Hardware'
+        'Trezor Hardware',
       )
 
       assert.deepEqual(keyrings[0].accounts, [])
@@ -468,7 +478,7 @@ describe('MetaMaskController', function () {
 
     it('should set unlockedAccount in the keyring', async function () {
       const keyrings = await metamaskController.keyringController.getKeyringsByType(
-        'Trezor Hardware'
+        'Trezor Hardware',
       )
       assert.equal(keyrings[0].unlockedAccount, accountToUnlock)
     })
@@ -821,47 +831,104 @@ describe('MetaMaskController', function () {
   })
 
   describe('#setupUntrustedCommunication', function () {
-    let streamTest
+    it('sets up phishing stream for untrusted communication ', async function () {
+      const phishingMessageSender = {
+        url: 'http://myethereumwalletntw.com',
+        tab: {},
+      }
+      await metamaskController.phishingController.updatePhishingLists()
 
-    const phishingUrl = 'myethereumwalletntw.com'
-
-    afterEach(function () {
-      streamTest.end()
-    })
-
-    it('sets up phishing stream for untrusted communication ', async () => {
-      await metamaskController.blacklistController.updatePhishingList()
-      console.log(blacklistJSON.blacklist.includes(phishingUrl))
 
       const { promise, resolve } = deferredPromise()
-
-      streamTest = createThoughStream((chunk, enc, cb) => {
-        if (chunk.name !== 'phishing') return cb()
-        assert.equal(chunk.data.hostname, phishingUrl)
+      const streamTest = createThoughStream((chunk, _, cb) => {
+        if (chunk.name !== 'phishing') {
+          return cb()
+        }
+        assert.equal(chunk.data.hostname, (new URL(phishingMessageSender.url)).hostname)
         resolve()
         cb()
       })
-      metamaskController.setupUntrustedCommunication(streamTest, phishingUrl)
 
+
+      metamaskController.setupUntrustedCommunication(streamTest, phishingMessageSender)
       await promise
+      streamTest.end()
+    })
+
+    it('adds a tabId and origin to requests', function (done) {
+      const messageSender = {
+        url: 'http://mycrypto.com',
+        tab: { id: 456 },
+      }
+      const streamTest = createThoughStream((chunk, _, cb) => {
+        if (chunk.data && chunk.data.method) {
+          cb(null, chunk)
+        } else {
+          cb()
+        }
+      })
+
+      metamaskController.setupUntrustedCommunication(streamTest, messageSender)
+
+      const message = {
+        id: 1999133338649204,
+        jsonrpc: '2.0',
+        params: ['mock tx params'],
+        method: 'eth_sendTransaction',
+      }
+      streamTest.write({
+        name: 'provider',
+        data: message,
+      }, null, () => {
+        done()
+      })
+    })
+
+    it('should add only origin to request if tabId not provided', function (done) {
+      const messageSender = {
+        url: 'http://mycrypto.com',
+      }
+      const streamTest = createThoughStream((chunk, _, cb) => {
+        if (chunk.data && chunk.data.method) {
+          cb(null, chunk)
+        } else {
+          cb()
+        }
+      })
+
+      metamaskController.setupUntrustedCommunication(streamTest, messageSender)
+
+      const message = {
+        id: 1999133338649204,
+        jsonrpc: '2.0',
+        params: ['mock tx params'],
+        method: 'eth_sendTransaction',
+      }
+      streamTest.write({
+        name: 'provider',
+        data: message,
+      }, null, () => {
+        done()
+      })
     })
   })
 
   describe('#setupTrustedCommunication', function () {
-    let streamTest
-
-    afterEach(function () {
-      streamTest.end()
-    })
-
-    it('sets up controller dnode api for trusted communication', function (done) {
-      streamTest = createThoughStream((chunk, enc, cb) => {
+    it('sets up controller dnode api for trusted communication', async function () {
+      const messageSender = {
+        url: 'http://mycrypto.com',
+        tab: {},
+      }
+      const { promise, resolve } = deferredPromise()
+      const streamTest = createThoughStream((chunk, _, cb) => {
         assert.equal(chunk.name, 'controller')
+        resolve()
         cb()
-        done()
       })
 
-      metamaskController.setupTrustedCommunication(streamTest, 'mycrypto.com')
+      metamaskController.setupTrustedCommunication(streamTest, messageSender)
+      await promise
+      streamTest.end()
     })
   })
 
@@ -964,6 +1031,8 @@ describe('MetaMaskController', function () {
 
 function deferredPromise () {
   let resolve
-  const promise = new Promise(_resolve => { resolve = _resolve })
+  const promise = new Promise((_resolve) => {
+    resolve = _resolve
+  })
   return { promise, resolve }
 }
diff --git a/test/unit/app/message-manager-test.js b/test/unit/app/message-manager-test.js
index 36ef6c29f..8c499c97d 100644
--- a/test/unit/app/message-manager-test.js
+++ b/test/unit/app/message-manager-test.js
@@ -1,5 +1,5 @@
-const assert = require('assert')
-const MessageManager = require('../../../app/scripts/lib/message-manager')
+import assert from 'assert'
+import MessageManager from '../../../app/scripts/lib/message-manager'
 
 describe('Message Manager', function () {
   let messageManager
@@ -10,7 +10,7 @@ describe('Message Manager', function () {
 
   describe('#getMsgList', function () {
     it('when new should return empty array', function () {
-      var result = messageManager.messages
+      const result = messageManager.messages
       assert.ok(Array.isArray(result))
       assert.equal(result.length, 0)
     })
@@ -21,9 +21,9 @@ describe('Message Manager', function () {
 
   describe('#addMsg', function () {
     it('adds a Msg returned in getMsgList', function () {
-      var Msg = { id: 1, status: 'approved', metamaskNetworkId: 'unit test' }
+      const Msg = { id: 1, status: 'approved', metamaskNetworkId: 'unit test' }
       messageManager.addMsg(Msg)
-      var result = messageManager.messages
+      const result = messageManager.messages
       assert.ok(Array.isArray(result))
       assert.equal(result.length, 1)
       assert.equal(result[0].id, 1)
@@ -32,10 +32,10 @@ describe('Message Manager', function () {
 
   describe('#setMsgStatusApproved', function () {
     it('sets the Msg status to approved', function () {
-      var Msg = { id: 1, status: 'unapproved', metamaskNetworkId: 'unit test' }
+      const Msg = { id: 1, status: 'unapproved', metamaskNetworkId: 'unit test' }
       messageManager.addMsg(Msg)
       messageManager.setMsgStatusApproved(1)
-      var result = messageManager.messages
+      const result = messageManager.messages
       assert.ok(Array.isArray(result))
       assert.equal(result.length, 1)
       assert.equal(result[0].status, 'approved')
@@ -44,10 +44,10 @@ describe('Message Manager', function () {
 
   describe('#rejectMsg', function () {
     it('sets the Msg status to rejected', function () {
-      var Msg = { id: 1, status: 'unapproved', metamaskNetworkId: 'unit test' }
+      const Msg = { id: 1, status: 'unapproved', metamaskNetworkId: 'unit test' }
       messageManager.addMsg(Msg)
       messageManager.rejectMsg(1)
-      var result = messageManager.messages
+      const result = messageManager.messages
       assert.ok(Array.isArray(result))
       assert.equal(result.length, 1)
       assert.equal(result[0].status, 'rejected')
@@ -59,7 +59,7 @@ describe('Message Manager', function () {
       messageManager.addMsg({ id: '1', status: 'unapproved', metamaskNetworkId: 'unit test' })
       messageManager.addMsg({ id: '2', status: 'approved', metamaskNetworkId: 'unit test' })
       messageManager._updateMsg({ id: '1', status: 'blah', hash: 'foo', metamaskNetworkId: 'unit test' })
-      var result = messageManager.getMsg('1')
+      const result = messageManager.getMsg('1')
       assert.equal(result.hash, 'foo')
     })
   })
diff --git a/test/unit/app/personal-message-manager-test.js b/test/unit/app/personal-message-manager-test.js
index b07167bff..9e5aaaba1 100644
--- a/test/unit/app/personal-message-manager-test.js
+++ b/test/unit/app/personal-message-manager-test.js
@@ -1,6 +1,5 @@
-const assert = require('assert')
-
-const PersonalMessageManager = require('../../../app/scripts/lib/personal-message-manager')
+import assert from 'assert'
+import PersonalMessageManager from '../../../app/scripts/lib/personal-message-manager'
 
 describe('Personal Message Manager', function () {
   let messageManager
@@ -11,7 +10,7 @@ describe('Personal Message Manager', function () {
 
   describe('#getMsgList', function () {
     it('when new should return empty array', function () {
-      var result = messageManager.messages
+      const result = messageManager.messages
       assert.ok(Array.isArray(result))
       assert.equal(result.length, 0)
     })
@@ -22,9 +21,9 @@ describe('Personal Message Manager', function () {
 
   describe('#addMsg', function () {
     it('adds a Msg returned in getMsgList', function () {
-      var Msg = { id: 1, status: 'approved', metamaskNetworkId: 'unit test' }
+      const Msg = { id: 1, status: 'approved', metamaskNetworkId: 'unit test' }
       messageManager.addMsg(Msg)
-      var result = messageManager.messages
+      const result = messageManager.messages
       assert.ok(Array.isArray(result))
       assert.equal(result.length, 1)
       assert.equal(result[0].id, 1)
@@ -33,10 +32,10 @@ describe('Personal Message Manager', function () {
 
   describe('#setMsgStatusApproved', function () {
     it('sets the Msg status to approved', function () {
-      var Msg = { id: 1, status: 'unapproved', metamaskNetworkId: 'unit test' }
+      const Msg = { id: 1, status: 'unapproved', metamaskNetworkId: 'unit test' }
       messageManager.addMsg(Msg)
       messageManager.setMsgStatusApproved(1)
-      var result = messageManager.messages
+      const result = messageManager.messages
       assert.ok(Array.isArray(result))
       assert.equal(result.length, 1)
       assert.equal(result[0].status, 'approved')
@@ -45,10 +44,10 @@ describe('Personal Message Manager', function () {
 
   describe('#rejectMsg', function () {
     it('sets the Msg status to rejected', function () {
-      var Msg = { id: 1, status: 'unapproved', metamaskNetworkId: 'unit test' }
+      const Msg = { id: 1, status: 'unapproved', metamaskNetworkId: 'unit test' }
       messageManager.addMsg(Msg)
       messageManager.rejectMsg(1)
-      var result = messageManager.messages
+      const result = messageManager.messages
       assert.ok(Array.isArray(result))
       assert.equal(result.length, 1)
       assert.equal(result[0].status, 'rejected')
@@ -60,7 +59,7 @@ describe('Personal Message Manager', function () {
       messageManager.addMsg({ id: '1', status: 'unapproved', metamaskNetworkId: 'unit test' })
       messageManager.addMsg({ id: '2', status: 'approved', metamaskNetworkId: 'unit test' })
       messageManager._updateMsg({ id: '1', status: 'blah', hash: 'foo', metamaskNetworkId: 'unit test' })
-      var result = messageManager.getMsg('1')
+      const result = messageManager.getMsg('1')
       assert.equal(result.hash, 'foo')
     })
   })
@@ -87,20 +86,20 @@ describe('Personal Message Manager', function () {
 
   describe('#normalizeMsgData', function () {
     it('converts text to a utf8 hex string', function () {
-      var input = 'hello'
-      var output = messageManager.normalizeMsgData(input)
+      const input = 'hello'
+      const output = messageManager.normalizeMsgData(input)
       assert.equal(output, '0x68656c6c6f', 'predictably hex encoded')
     })
 
     it('tolerates a hex prefix', function () {
-      var input = '0x12'
-      var output = messageManager.normalizeMsgData(input)
+      const input = '0x12'
+      const output = messageManager.normalizeMsgData(input)
       assert.equal(output, '0x12', 'un modified')
     })
 
     it('tolerates normal hex', function () {
-      var input = '12'
-      var output = messageManager.normalizeMsgData(input)
+      const input = '12'
+      const output = messageManager.normalizeMsgData(input)
       assert.equal(output, '0x12', 'adds prefix')
     })
   })
diff --git a/test/unit/old-ui/app/components/error.spec.js b/test/unit/old-ui/app/components/error.spec.js
index 3b9a40056..8a86f4442 100644
--- a/test/unit/old-ui/app/components/error.spec.js
+++ b/test/unit/old-ui/app/components/error.spec.js
@@ -22,7 +22,7 @@ describe('ErrorComponent', () => {
 			wrapper = mount(
 				<Provider store={store}>
 					<ErrorComponent error="Error!"/>
-				</Provider>
+				</Provider>,
 			)
 		})
 		it('shows error', () => {
@@ -35,7 +35,7 @@ describe('ErrorComponent', () => {
 			wrapper = mount(
 				<Provider store={store}>
 					<ErrorComponent/>
-				</Provider>
+				</Provider>,
 			)
 		})
 
diff --git a/test/unit/old-ui/app/components/send/choose-contract-executor.spec.js b/test/unit/old-ui/app/components/send/choose-contract-executor.spec.js
index b0e57c4ff..79e3eef21 100644
--- a/test/unit/old-ui/app/components/send/choose-contract-executor.spec.js
+++ b/test/unit/old-ui/app/components/send/choose-contract-executor.spec.js
@@ -49,7 +49,7 @@ describe('ChooseContractExecutor component', () => {
 						inputValues={[]}
 						txParams={{}}
 					/>
-				</Provider>
+				</Provider>,
 			)
 		})
 
diff --git a/test/unit/old-ui/app/components/send/executor-cell.spec.js b/test/unit/old-ui/app/components/send/executor-cell.spec.js
index 9513ae5e5..733134a05 100644
--- a/test/unit/old-ui/app/components/send/executor-cell.spec.js
+++ b/test/unit/old-ui/app/components/send/executor-cell.spec.js
@@ -31,7 +31,7 @@ describe('ExecutorCell component', () => {
 						}}
 						onClick={() => {}}
 					/>
-				</Provider>
+				</Provider>,
 			)
 		})
 
diff --git a/test/unit/old-ui/app/components/send/send-header.spec.js b/test/unit/old-ui/app/components/send/send-header.spec.js
index b43b4d387..c5c37d5e0 100644
--- a/test/unit/old-ui/app/components/send/send-header.spec.js
+++ b/test/unit/old-ui/app/components/send/send-header.spec.js
@@ -24,7 +24,7 @@ describe('SendHeader component', () => {
 					<SendHeader
 						title={'Execute Method'}
 					/>
-				</Provider>
+				</Provider>,
 			)
 		})
 		it('renders correct title', () => {
diff --git a/test/unit/old-ui/app/components/send/send-profile.spec.js b/test/unit/old-ui/app/components/send/send-profile.spec.js
index 1033ef778..f50d2cb77 100644
--- a/test/unit/old-ui/app/components/send/send-profile.spec.js
+++ b/test/unit/old-ui/app/components/send/send-profile.spec.js
@@ -33,7 +33,7 @@ describe('SendProfile component', () => {
 			wrapper = mount(
 				<Provider store={store}>
 					<SendProfile/>
-				</Provider>
+				</Provider>,
 			)
 		})
 		it('shows identity name', () => {
diff --git a/test/unit/responsive/components/dropdown-test.js b/test/unit/responsive/components/dropdown-test.js
index 3120cb3f9..254170e2c 100644
--- a/test/unit/responsive/components/dropdown-test.js
+++ b/test/unit/responsive/components/dropdown-test.js
@@ -55,7 +55,7 @@ describe('Dropdown components', function () {
           closeMenu,
           onClick,
         }, 'Item 2'),
-      ]
+      ],
     ), store)
     dropdownComponent = component
   })
diff --git a/test/unit/ui/app/components/token-cell.spec.js b/test/unit/ui/app/components/token-cell.spec.js
index 6145c6924..de03258d7 100644
--- a/test/unit/ui/app/components/token-cell.spec.js
+++ b/test/unit/ui/app/components/token-cell.spec.js
@@ -44,7 +44,7 @@ describe('Token Cell', () => {
           currentCurrency={'usd'}
           image={'./test-image'}
         />
-      </Provider>
+      </Provider>,
     )
   })
 
diff --git a/ui/app/actions.js b/ui/app/actions.js
index a45bff18f..059751a38 100644
--- a/ui/app/actions.js
+++ b/ui/app/actions.js
@@ -323,6 +323,8 @@ var actions = {
   SET_DPROVIDER: 'SET_DPROVIDER',
   setDProvider,
 
+  setUsePhishDetect,
+
   // locale
   SET_CURRENT_LOCALE: 'SET_CURRENT_LOCALE',
   SET_LOCALE_MESSAGES: 'SET_LOCALE_MESSAGES',
@@ -1863,7 +1865,7 @@ function addTokens (tokens) {
         .entries(tokens)
         .map(([_, { address, symbol, decimals, image, network }]) => (
           dispatch(addToken(address, symbol, decimals, image, network))
-        ))
+        )),
       )
     }
   }
@@ -2634,6 +2636,19 @@ function setUseBlockie (val) {
   }
 }
 
+function setUsePhishDetect (val) {
+  return (dispatch) => {
+    dispatch(showLoadingIndication())
+    log.debug(`background.setUsePhishDetect`)
+    background.setUsePhishDetect(val, (err) => {
+      dispatch(hideLoadingIndication())
+      if (err) {
+        return dispatch(displayWarning(err.message))
+      }
+    })
+  }
+}
+
 function updateCurrentLocale (key) {
   return (dispatch) => {
     dispatch(actions.showLoadingIndication())
diff --git a/ui/app/components/button/button.component.js b/ui/app/components/button/button.component.js
index 4a06333e7..76f96c226 100644
--- a/ui/app/components/button/button.component.js
+++ b/ui/app/components/button/button.component.js
@@ -34,7 +34,7 @@ export default class Button extends Component {
           'button',
           typeHash[type],
           large && CLASSNAME_LARGE,
-          className
+          className,
         )}
         { ...buttonProps }
       >
diff --git a/ui/app/components/button/button.stories.js b/ui/app/components/button/button.stories.js
index dec084a25..a855e67e2 100644
--- a/ui/app/components/button/button.stories.js
+++ b/ui/app/components/button/button.stories.js
@@ -11,7 +11,7 @@ storiesOf('Button', module)
       type="primary"
     >
       {text('text', 'Click me')}
-    </Button>
+    </Button>,
   )
   .add('secondary', () =>
     <Button
@@ -19,7 +19,7 @@ storiesOf('Button', module)
       type="secondary"
     >
       {text('text', 'Click me')}
-    </Button>
+    </Button>,
   )
   .add('default', () => (
     <Button
diff --git a/ui/app/components/dropdowns/components/account-dropdowns.js b/ui/app/components/dropdowns/components/account-dropdowns.js
index 3e53a1f79..2050872ae 100644
--- a/ui/app/components/dropdowns/components/account-dropdowns.js
+++ b/ui/app/components/dropdowns/components/account-dropdowns.js
@@ -135,7 +135,7 @@ class AccountDropdowns extends Component {
             ]),
 
           ]),
-        ]
+        ],
       )
     })
   }
@@ -193,7 +193,7 @@ class AccountDropdowns extends Component {
                 style: {
                   marginLeft: '8px',
                 },
-              }
+              },
             ),
             h('span', {
               style: {
@@ -226,7 +226,7 @@ class AccountDropdowns extends Component {
                 style: {
                   marginLeft: '8px',
                 },
-              }
+              },
             ),
             h('span', {
               style: {
@@ -237,9 +237,9 @@ class AccountDropdowns extends Component {
                 lineHeight: '23px',
               },
             }, this.context.t('importAccount')),
-          ]
+          ],
         ),
-      ]
+      ],
     )
   }
 
@@ -348,7 +348,7 @@ class AccountDropdowns extends Component {
           this.context.t('addToken'),
         ),
 
-      ]
+      ],
     )
   }
 
@@ -393,9 +393,9 @@ class AccountDropdowns extends Component {
               })
             },
           },
-          this.renderAccountOptions()
+          this.renderAccountOptions(),
         ),
-      ]
+      ],
     )
   }
 }
diff --git a/ui/app/components/dropdowns/components/dropdown.js b/ui/app/components/dropdowns/components/dropdown.js
index 149f063a7..96c99931b 100644
--- a/ui/app/components/dropdowns/components/dropdown.js
+++ b/ui/app/components/dropdowns/components/dropdown.js
@@ -46,10 +46,10 @@ class Dropdown extends Component {
             border-radius: 4px;
           }
           li.dropdown-menu-item { color: rgb(185, 185, 185); }
-          `
+          `,
         ),
         ...children,
-      ]
+      ],
     )
   }
 }
@@ -94,7 +94,7 @@ class DropdownMenuItem extends Component {
           color: 'white',
         }, style),
       },
-      children
+      children,
     )
   }
 }
diff --git a/ui/app/components/dropdowns/components/menu.js b/ui/app/components/dropdowns/components/menu.js
index f6d8a139e..7ab6a1497 100644
--- a/ui/app/components/dropdowns/components/menu.js
+++ b/ui/app/components/dropdowns/components/menu.js
@@ -30,7 +30,7 @@ Item.prototype.render = function () {
   return children
     ? h('div', { className: itemClassName, onClick }, children)
     : h('div.menu__item', { className: itemClassName, onClick }, [ iconComponent, textComponent ]
-      .filter(d => Boolean(d))
+      .filter(d => Boolean(d)),
     )
 }
 
diff --git a/ui/app/components/dropdowns/components/network-dropdown-icon.js b/ui/app/components/dropdowns/components/network-dropdown-icon.js
index a45da4c10..666664473 100644
--- a/ui/app/components/dropdowns/components/network-dropdown-icon.js
+++ b/ui/app/components/dropdowns/components/network-dropdown-icon.js
@@ -26,6 +26,6 @@ NetworkDropdownIcon.prototype.render = function () {
         height: `${diameter}px`,
         width: `${diameter}px`,
       },
-    })
+    }),
   )
 }
diff --git a/ui/app/components/dropdowns/network-dropdown.js b/ui/app/components/dropdowns/network-dropdown.js
index a32bba45f..b3756e26f 100644
--- a/ui/app/components/dropdowns/network-dropdown.js
+++ b/ui/app/components/dropdowns/network-dropdown.js
@@ -63,7 +63,7 @@ NetworkDropdown.contextTypes = {
 
 module.exports = compose(
   withRouter,
-  connect(mapStateToProps, mapDispatchToProps)
+  connect(mapStateToProps, mapDispatchToProps),
 )(NetworkDropdown)
 
 
@@ -110,7 +110,7 @@ NetworkDropdown.prototype.render = function () {
 
       h('div.network-dropdown-content',
         {},
-        this.context.t('defaultNetwork')
+        this.context.t('defaultNetwork'),
       ),
     ]),
 
@@ -133,7 +133,7 @@ NetworkDropdown.prototype.render = function () {
             color: providerType === 'mainnet' ? '#ffffff' : '#9b9b9b',
           },
         }, this.context.t('mainnet')),
-      ]
+      ],
     ),
 
     h(
@@ -155,7 +155,7 @@ NetworkDropdown.prototype.render = function () {
             color: providerType === 'ropsten' ? '#ffffff' : '#9b9b9b',
           },
         }, this.context.t('ropsten')),
-      ]
+      ],
     ),
 
     h(
@@ -177,7 +177,7 @@ NetworkDropdown.prototype.render = function () {
             color: providerType === 'kovan' ? '#ffffff' : '#9b9b9b',
           },
         }, this.context.t('kovan')),
-      ]
+      ],
     ),
 
     h(
@@ -199,7 +199,7 @@ NetworkDropdown.prototype.render = function () {
             color: providerType === 'rinkeby' ? '#ffffff' : '#9b9b9b',
           },
         }, this.context.t('rinkeby')),
-      ]
+      ],
     ),
 
     h(
@@ -221,7 +221,7 @@ NetworkDropdown.prototype.render = function () {
             color: providerType === 'poa' ? '#ffffff' : '#9b9b9b',
           },
         }, this.context.t('poa')),
-      ]
+      ],
     ),
 
     h(
@@ -243,7 +243,7 @@ NetworkDropdown.prototype.render = function () {
             color: providerType === 'localhost' ? '#ffffff' : '#9b9b9b',
           },
         }, this.context.t('localhost')),
-      ]
+      ],
     ),
 
     this.renderCustomOption(props.provider),
@@ -267,7 +267,7 @@ NetworkDropdown.prototype.render = function () {
             color: activeNetwork === 'custom' ? '#ffffff' : '#9b9b9b',
           },
         }, this.context.t('customRPC')),
-      ]
+      ],
     ),
 
   ])
@@ -334,7 +334,7 @@ NetworkDropdown.prototype.renderCommonRpc = function (rpcList, provider) {
               props.delRpcTarget(rpc)
             },
           }),
-        ]
+        ],
       )
     }
   })
@@ -372,7 +372,7 @@ NetworkDropdown.prototype.renderCustomOption = function (provider) {
               color: '#ffffff',
             },
           }, rpcTarget),
-        ]
+        ],
       )
   }
 }
diff --git a/ui/app/components/dropdowns/simple-dropdown.js b/ui/app/components/dropdowns/simple-dropdown.js
index bba088ed1..8f765af67 100644
--- a/ui/app/components/dropdowns/simple-dropdown.js
+++ b/ui/app/components/dropdowns/simple-dropdown.js
@@ -77,7 +77,7 @@ class SimpleDropdown extends Component {
         h('div.simple-dropdown__selected', this.getDisplayValue() || placeholder || 'Select'),
         h('i.fa.fa-caret-down.fa-lg.simple-dropdown__caret'),
         isOpen && this.renderOptions(),
-      ]
+      ],
     )
   }
 }
diff --git a/ui/app/components/dropdowns/tests/dropdown.test.js b/ui/app/components/dropdowns/tests/dropdown.test.js
index 2b026589a..7485565d9 100644
--- a/ui/app/components/dropdowns/tests/dropdown.test.js
+++ b/ui/app/components/dropdowns/tests/dropdown.test.js
@@ -16,7 +16,7 @@ describe('', () => {
         style = {{test: 'style'}}
         closeMenu = {closeMenuSpy}
       >
-      </DropdownMenuItem>
+      </DropdownMenuItem>,
     )
   })
 
diff --git a/ui/app/components/dropdowns/tests/menu.test.js b/ui/app/components/dropdowns/tests/menu.test.js
index 9f5f13f00..802e0fc06 100644
--- a/ui/app/components/dropdowns/tests/menu.test.js
+++ b/ui/app/components/dropdowns/tests/menu.test.js
@@ -11,7 +11,7 @@ describe('Dropdown Menu Components', () => {
 
     beforeEach(() => {
       wrapper = shallow(
-        <Menu className = {'Test Class'} isShowing = {true}/>
+        <Menu className = {'Test Class'} isShowing = {true}/>,
       )
     })
 
@@ -33,7 +33,7 @@ describe('Dropdown Menu Components', () => {
           text = {'test text'}
           className = {'test className'}
           onClick = {onClickSpy}
-        />
+        />,
       )
     })
 
diff --git a/ui/app/components/modal/modal-content/tests/modal-content.component.test.js b/ui/app/components/modal/modal-content/tests/modal-content.component.test.js
index 17af09f45..f0581dda8 100644
--- a/ui/app/components/modal/modal-content/tests/modal-content.component.test.js
+++ b/ui/app/components/modal/modal-content/tests/modal-content.component.test.js
@@ -8,7 +8,7 @@ describe('ModalContent Component', () => {
     const wrapper = shallow(
       <ModalContent
         title="Modal Title"
-      />
+      />,
     )
 
     assert.equal(wrapper.find('.modal-content__title').length, 1)
@@ -20,7 +20,7 @@ describe('ModalContent Component', () => {
     const wrapper = shallow(
       <ModalContent
         description="Modal Description"
-      />
+      />,
     )
 
     assert.equal(wrapper.find('.modal-content__title').length, 0)
@@ -33,7 +33,7 @@ describe('ModalContent Component', () => {
       <ModalContent
         title="Modal Title"
         description="Modal Description"
-      />
+      />,
     )
 
     assert.equal(wrapper.find('.modal-content__title').length, 1)
diff --git a/ui/app/components/modal/tests/modal.component.test.js b/ui/app/components/modal/tests/modal.component.test.js
index 8cce1a808..e82c2ad5a 100644
--- a/ui/app/components/modal/tests/modal.component.test.js
+++ b/ui/app/components/modal/tests/modal.component.test.js
@@ -24,7 +24,7 @@ describe('Modal Component', () => {
         cancelText="Cancel"
         onSubmit={handleSubmit}
         submitText="Submit"
-      />
+      />,
     )
 
     const buttons = wrapper.find(Button)
@@ -54,7 +54,7 @@ describe('Modal Component', () => {
         onSubmit={() => {}}
         submitText="Submit"
         submitType="confirm"
-      />
+      />,
     )
 
     const buttons = wrapper.find(Button)
@@ -72,7 +72,7 @@ describe('Modal Component', () => {
         submitText="Submit"
       >
         <div className="test-child" />
-      </Modal>
+      </Modal>,
     )
 
     assert.ok(wrapper.find('.test-class'))
@@ -89,7 +89,7 @@ describe('Modal Component', () => {
         submitText="Submit"
         headerText="My Header"
         onClose={handleCancel}
-      />
+      />,
     )
 
     assert.ok(wrapper.find('.modal-container__header'))
diff --git a/ui/app/components/modals/buy-options-modal.js b/ui/app/components/modals/buy-options-modal.js
index c70510b5f..61c45606a 100644
--- a/ui/app/components/modals/buy-options-modal.js
+++ b/ui/app/components/modals/buy-options-modal.js
@@ -80,7 +80,7 @@ BuyOptions.prototype.render = function () {
         this.renderModalContentOption(
           this.context.t('directDeposit'),
           this.context.t('depositFromAccount'),
-          () => this.goToAccountDetailsModal()
+          () => this.goToAccountDetailsModal(),
         ),
 
       ]),
diff --git a/ui/app/components/modals/export-private-key-modal.js b/ui/app/components/modals/export-private-key-modal.js
index cc2e0cb25..54986bd43 100644
--- a/ui/app/components/modals/export-private-key-modal.js
+++ b/ui/app/components/modals/export-private-key-modal.js
@@ -78,7 +78,7 @@ ExportPrivateKeyModal.prototype.exportAccountAndGetPrivateKey = function (passwo
 ExportPrivateKeyModal.prototype.renderPasswordLabel = function (privateKey) {
   return h('span.private-key-password-label', privateKey
     ? this.context.t('copyPrivateKey')
-    : this.context.t('typePassword')
+    : this.context.t('typePassword'),
   )
 }
 
diff --git a/ui/app/components/send/send.utils.js b/ui/app/components/send/send.utils.js
index a18a9e4b3..542137df7 100644
--- a/ui/app/components/send/send.utils.js
+++ b/ui/app/components/send/send.utils.js
@@ -296,7 +296,7 @@ function generateTokenTransferData ({ toAddress = '0x0', amount = '0x0', selecte
   if (!selectedToken) return
   return TOKEN_TRANSFER_FUNCTION_SIGNATURE + Array.prototype.map.call(
     abi.rawEncode(['address', 'uint256'], [toAddress, ethUtil.addHexPrefix(amount)]),
-    x => ('00' + x.toString(16)).slice(-2)
+    x => ('00' + x.toString(16)).slice(-2),
   ).join('')
 }
 
diff --git a/ui/app/components/text-field/text-field.stories.js b/ui/app/components/text-field/text-field.stories.js
index c00873b8a..7e19217b1 100644
--- a/ui/app/components/text-field/text-field.stories.js
+++ b/ui/app/components/text-field/text-field.stories.js
@@ -7,41 +7,41 @@ storiesOf('TextField', module)
     <TextField
       label="Text"
       type="text"
-    />
+    />,
   )
   .add('password', () =>
     <TextField
       label="Password"
       type="password"
-    />
+    />,
   )
   .add('error', () =>
     <TextField
       type="text"
       label="Name"
       error="Invalid value"
-    />
+    />,
   )
   .add('Mascara text', () =>
     <TextField
       label="Text"
       type="text"
       largeLabel
-    />
+    />,
   )
   .add('Material text', () =>
     <TextField
       label="Text"
       type="text"
       material
-    />
+    />,
   )
   .add('Material password', () =>
     <TextField
       label="Password"
       type="password"
       material
-    />
+    />,
   )
   .add('Material error', () =>
     <TextField
@@ -49,5 +49,5 @@ storiesOf('TextField', module)
       label="Name"
       error="Invalid value"
       material
-    />
+    />,
   )
diff --git a/ui/app/components/token-cell.js b/ui/app/components/token-cell.js
index edf8b2661..70a24b59e 100644
--- a/ui/app/components/token-cell.js
+++ b/ui/app/components/token-cell.js
@@ -65,7 +65,7 @@ TokenCell.prototype.render = function () {
   if (contractExchangeRates[address]) {
     currentTokenToFiatRate = multiplyCurrencies(
       contractExchangeRates[address],
-      conversionRate
+      conversionRate,
     )
     currentTokenInFiat = conversionUtil(string, {
       fromNumericBase: 'dec',
diff --git a/ui/app/conversion-util.js b/ui/app/conversion-util.js
index f271b5683..9062d8efe 100644
--- a/ui/app/conversion-util.js
+++ b/ui/app/conversion-util.js
@@ -70,7 +70,7 @@ const baseChange = {
 const fromAndToCurrencyPropsNotEqual = R.compose(
   R.not,
   R.eqBy(R.__, 'fromCurrency', 'toCurrency'),
-  R.flip(R.prop)
+  R.flip(R.prop),
 )
 
 // Lens
@@ -82,8 +82,8 @@ const whenPredSetCRWithPropAndSetter = (pred, prop, setter) => R.when(
   pred,
   R.converge(
     conversionRateLens,
-    [R.pipe(R.prop(prop), setter), R.identity]
-  )
+    [R.pipe(R.prop(prop), setter), R.identity],
+  ),
 )
 
 // conditional 'value' setting wrappers
@@ -91,13 +91,13 @@ const whenPredSetWithPropAndSetter = (pred, prop, setter) => R.when(
   pred,
   R.converge(
     valuePropertyLens,
-    [R.pipe(R.prop(prop), setter), R.identity]
-  )
+    [R.pipe(R.prop(prop), setter), R.identity],
+  ),
 )
 const whenPropApplySetterMap = (prop, setterMap) => whenPredSetWithPropAndSetter(
   R.prop(prop),
   prop,
-  R.prop(R.__, setterMap)
+  R.prop(R.__, setterMap),
 )
 
 // Conversion utility function
@@ -111,7 +111,7 @@ const converter = R.pipe(
   whenPredSetWithPropAndSetter(R.prop('numberOfDecimals'), 'numberOfDecimals', round),
   whenPredSetWithPropAndSetter(R.prop('roundDown'), 'roundDown', roundDown),
   whenPropApplySetterMap('toNumericBase', baseChange),
-  R.view(R.lensProp('value'))
+  R.view(R.lensProp('value')),
 )
 
 const conversionUtil = (value, {
@@ -209,7 +209,7 @@ const conversionMax = (
 ) => {
   const firstIsGreater = conversionGreaterThan(
     { ...firstProps },
-    { ...secondProps }
+    { ...secondProps },
   )
 
   return firstIsGreater ? firstProps.value : secondProps.value
diff --git a/ui/app/ducks/tests/confirm-transaction.duck.test.js b/ui/app/ducks/tests/confirm-transaction.duck.test.js
index eceacd0bd..70c3b48fe 100644
--- a/ui/app/ducks/tests/confirm-transaction.duck.test.js
+++ b/ui/app/ducks/tests/confirm-transaction.duck.test.js
@@ -78,7 +78,7 @@ describe('Confirm Transaction Duck', () => {
     it('should initialize state', () => {
       assert.deepEqual(
         ConfirmTransactionReducer({}),
-        initialState
+        initialState,
       )
     })
 
@@ -106,7 +106,7 @@ describe('Confirm Transaction Duck', () => {
             ...mockState.confirmTransaction.txData,
             id: 2,
           },
-        }
+        },
       )
     })
 
@@ -118,7 +118,7 @@ describe('Confirm Transaction Duck', () => {
         {
           ...mockState.confirmTransaction,
           txData: {},
-        }
+        },
       )
     })
 
@@ -136,7 +136,7 @@ describe('Confirm Transaction Duck', () => {
             ...mockState.confirmTransaction.tokenData,
             name: 'defToken',
           },
-        }
+        },
       )
     })
 
@@ -148,7 +148,7 @@ describe('Confirm Transaction Duck', () => {
         {
           ...mockState.confirmTransaction,
           tokenData: {},
-        }
+        },
       )
     })
 
@@ -166,7 +166,7 @@ describe('Confirm Transaction Duck', () => {
             ...mockState.confirmTransaction.methodData,
             name: 'transferFrom',
           },
-        }
+        },
       )
     })
 
@@ -178,7 +178,7 @@ describe('Confirm Transaction Duck', () => {
         {
           ...mockState.confirmTransaction,
           methodData: {},
-        }
+        },
       )
     })
 
@@ -197,7 +197,7 @@ describe('Confirm Transaction Duck', () => {
           fiatTransactionAmount: '123.45',
           ethTransactionAmount: '.5',
           hexTransactionAmount: '0x1',
-        }
+        },
       )
     })
 
@@ -216,7 +216,7 @@ describe('Confirm Transaction Duck', () => {
           fiatTransactionFee: '123.45',
           ethTransactionFee: '.5',
           hexTransactionFee: '0x1',
-        }
+        },
       )
     })
 
@@ -235,7 +235,7 @@ describe('Confirm Transaction Duck', () => {
           fiatTransactionTotal: '123.45',
           ethTransactionTotal: '.5',
           hexTransactionTotal: '0x1',
-        }
+        },
       )
     })
 
@@ -254,7 +254,7 @@ describe('Confirm Transaction Duck', () => {
             tokenSymbol: 'DEF',
             tokenDecimals: '1',
           },
-        }
+        },
       )
     })
 
@@ -267,7 +267,7 @@ describe('Confirm Transaction Duck', () => {
         {
           ...mockState.confirmTransaction,
           nonce: '0x1',
-        }
+        },
       )
     })
 
@@ -280,7 +280,7 @@ describe('Confirm Transaction Duck', () => {
         {
           ...mockState.confirmTransaction,
           toSmartContract: true,
-        }
+        },
       )
     })
 
@@ -292,7 +292,7 @@ describe('Confirm Transaction Duck', () => {
         {
           ...mockState.confirmTransaction,
           fetchingData: true,
-        }
+        },
       )
     })
 
@@ -303,7 +303,7 @@ describe('Confirm Transaction Duck', () => {
         }),
         {
           fetchingData: false,
-        }
+        },
       )
     })
 
@@ -314,7 +314,7 @@ describe('Confirm Transaction Duck', () => {
         }),
         {
           ...initialState,
-        }
+        },
       )
     })
   })
@@ -329,7 +329,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.updateTxData(txData),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -340,7 +340,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.clearTxData(),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -353,7 +353,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.updateTokenData(tokenData),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -364,7 +364,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.clearTokenData(),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -377,7 +377,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.updateMethodData(methodData),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -388,7 +388,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.clearMethodData(),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -401,7 +401,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.updateTransactionAmounts(transactionAmounts),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -414,7 +414,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.updateTransactionFees(transactionFees),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -427,7 +427,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.updateTransactionTotals(transactionTotals),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -443,7 +443,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.updateTokenProps(tokenProps),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -456,7 +456,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.updateNonce(nonce),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -467,7 +467,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.setFetchingData(true),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -478,7 +478,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.setFetchingData(false),
-        expectedAction
+        expectedAction,
       )
     })
 
@@ -489,7 +489,7 @@ describe('Confirm Transaction Duck', () => {
 
       assert.deepEqual(
         actions.clearConfirmTransaction(),
-        expectedAction
+        expectedAction,
       )
     })
   })
@@ -498,7 +498,7 @@ describe('Confirm Transaction Duck', () => {
     beforeEach(() => {
       global.eth = {
         getCode: sinon.stub().callsFake(
-          address => Promise.resolve(address && address.match(/isContract/) ? 'not-0x' : '0x')
+          address => Promise.resolve(address && address.match(/isContract/) ? 'not-0x' : '0x'),
         ),
       }
     })
diff --git a/ui/app/ducks/tests/send-duck.test.js b/ui/app/ducks/tests/send-duck.test.js
index c101132d9..3ffee3e05 100644
--- a/ui/app/ducks/tests/send-duck.test.js
+++ b/ui/app/ducks/tests/send-duck.test.js
@@ -30,7 +30,7 @@ describe('Send Duck', () => {
     it('should initialize state', () => {
       assert.deepEqual(
         SendReducer({}),
-        initState
+        initState,
       )
     })
 
@@ -40,7 +40,7 @@ describe('Send Duck', () => {
           type: 'someOtherAction',
           value: 'someValue',
         }),
-        Object.assign({}, mockState.send)
+        Object.assign({}, mockState.send),
       )
     })
 
@@ -49,7 +49,7 @@ describe('Send Duck', () => {
         SendReducer(mockState, {
           type: OPEN_FROM_DROPDOWN,
         }),
-        Object.assign({fromDropdownOpen: true}, mockState.send)
+        Object.assign({fromDropdownOpen: true}, mockState.send),
       )
     })
 
@@ -63,7 +63,7 @@ describe('Send Duck', () => {
         SendReducer(mockState, {
           type: CLOSE_FROM_DROPDOWN,
         }),
-        Object.assign({fromDropdownOpen: false}, mockState.send)
+        Object.assign({fromDropdownOpen: false}, mockState.send),
       )
     })
 
@@ -72,7 +72,7 @@ describe('Send Duck', () => {
         SendReducer(mockState, {
           type: OPEN_TO_DROPDOWN,
         }),
-        Object.assign({toDropdownOpen: true}, mockState.send)
+        Object.assign({toDropdownOpen: true}, mockState.send),
       )
     })
 
@@ -81,7 +81,7 @@ describe('Send Duck', () => {
         SendReducer(mockState, {
           type: CLOSE_TO_DROPDOWN,
         }),
-        Object.assign({toDropdownOpen: false}, mockState.send)
+        Object.assign({toDropdownOpen: false}, mockState.send),
       )
     })
 
@@ -103,7 +103,7 @@ describe('Send Duck', () => {
             someError: false,
             someOtherError: true,
           },
-        })
+        }),
       )
     })
 
@@ -112,7 +112,7 @@ describe('Send Duck', () => {
         SendReducer(mockState, {
           type: RESET_SEND_STATE,
         }),
-        Object.assign({}, initState)
+        Object.assign({}, initState),
       )
     })
   })
@@ -120,35 +120,35 @@ describe('Send Duck', () => {
   describe('openFromDropdown', () => {
     assert.deepEqual(
       openFromDropdown(),
-      { type: OPEN_FROM_DROPDOWN }
+      { type: OPEN_FROM_DROPDOWN },
     )
   })
 
   describe('closeFromDropdown', () => {
     assert.deepEqual(
       closeFromDropdown(),
-      { type: CLOSE_FROM_DROPDOWN }
+      { type: CLOSE_FROM_DROPDOWN },
     )
   })
 
   describe('openToDropdown', () => {
     assert.deepEqual(
       openToDropdown(),
-      { type: OPEN_TO_DROPDOWN }
+      { type: OPEN_TO_DROPDOWN },
     )
   })
 
   describe('closeToDropdown', () => {
     assert.deepEqual(
       closeToDropdown(),
-      { type: CLOSE_TO_DROPDOWN }
+      { type: CLOSE_TO_DROPDOWN },
     )
   })
 
   describe('updateSendErrors', () => {
     assert.deepEqual(
       updateSendErrors('mockErrorObject'),
-      { type: UPDATE_SEND_ERRORS, value: 'mockErrorObject' }
+      { type: UPDATE_SEND_ERRORS, value: 'mockErrorObject' },
     )
   })
 
diff --git a/ui/app/helpers/confirm-transaction/util.test.js b/ui/app/helpers/confirm-transaction/util.test.js
index 4c1a3e16b..245a30525 100644
--- a/ui/app/helpers/confirm-transaction/util.test.js
+++ b/ui/app/helpers/confirm-transaction/util.test.js
@@ -18,28 +18,28 @@ describe('Confirm Transaction utils', () => {
     it('should return true if the first value is greater than the second value', () => {
       assert.equal(
         utils.hexGreaterThan('0xb', '0xa'),
-        true
+        true,
       )
     })
 
     it('should return false if the first value is less than the second value', () => {
       assert.equal(
         utils.hexGreaterThan('0xa', '0xb'),
-        false
+        false,
       )
     })
 
     it('should return false if the first value is equal to the second value', () => {
       assert.equal(
         utils.hexGreaterThan('0xa', '0xa'),
-        false
+        false,
       )
     })
 
     it('should correctly compare prefixed and non-prefixed hex values', () => {
       assert.equal(
         utils.hexGreaterThan('0xb', 'a'),
-        true
+        true,
       )
     })
   })
@@ -48,14 +48,14 @@ describe('Confirm Transaction utils', () => {
     it('should multiply the hex gasLimit and hex gasPrice values together', () => {
       assert.equal(
         utils.getHexGasTotal({ gasLimit: '0x5208', gasPrice: '0x3b9aca00' }),
-        '0x1319718a5000'
+        '0x1319718a5000',
       )
     })
 
     it('should prefix the result with 0x', () => {
       assert.equal(
         utils.getHexGasTotal({ gasLimit: '5208', gasPrice: '3b9aca00' }),
-        '0x1319718a5000'
+        '0x1319718a5000',
       )
     })
   })
@@ -64,14 +64,14 @@ describe('Confirm Transaction utils', () => {
     it('should add two values together rounding to 6 decimal places', () => {
       assert.equal(
         utils.addEth('0.12345678', '0'),
-        '0.123457'
+        '0.123457',
       )
     })
 
     it('should add any number of values together rounding to 6 decimal places', () => {
       assert.equal(
         utils.addEth('0.1', '0.02', '0.003', '0.0004', '0.00005', '0.000006', '0.0000007'),
-        '0.123457'
+        '0.123457',
       )
     })
   })
@@ -80,14 +80,14 @@ describe('Confirm Transaction utils', () => {
     it('should add two values together rounding to 2 decimal places', () => {
       assert.equal(
         utils.addFiat('0.12345678', '0'),
-        '0.12'
+        '0.12',
       )
     })
 
     it('should add any number of values together rounding to 2 decimal places', () => {
       assert.equal(
         utils.addFiat('0.1', '0.02', '0.003', '0.0004', '0.00005', '0.000006', '0.0000007'),
-        '0.12'
+        '0.12',
       )
     })
   })
diff --git a/ui/app/i18n-provider.js b/ui/app/i18n-provider.js
index 76cbf099b..fd9372e41 100644
--- a/ui/app/i18n-provider.js
+++ b/ui/app/i18n-provider.js
@@ -48,6 +48,6 @@ const mapStateToProps = state => {
 }
 
 module.exports = compose(
-  connect(mapStateToProps)
+  connect(mapStateToProps),
 )(I18nProvider)
 
diff --git a/ui/app/selectors.js b/ui/app/selectors.js
index b656b40e6..1eec98a20 100644
--- a/ui/app/selectors.js
+++ b/ui/app/selectors.js
@@ -33,6 +33,7 @@ const selectors = {
   getTotalUnapprovedCount,
   preferencesSelector,
   getMetaMaskAccounts,
+  getUsePhishDetect,
 }
 
 module.exports = selectors
@@ -69,6 +70,10 @@ function getMetaMaskAccounts (state) {
   return selectedAccounts
 }
 
+function getUsePhishDetect (state) {
+  return Boolean(state.metamask.usePhishDetect)
+}
+
 function getSelectedAccount (state) {
   const accounts = getMetaMaskAccounts(state)
   const selectedAddress = getSelectedAddress(state)
@@ -166,7 +171,7 @@ function getSelectedTokenToFiatRate (state) {
   const tokenToFiatRate = multiplyCurrencies(
     conversionRate,
     selectedTokenExchangeRate,
-    { toNumericBase: 'dec' }
+    { toNumericBase: 'dec' },
   )
 
   return tokenToFiatRate
diff --git a/ui/app/selectors/confirm-transaction.js b/ui/app/selectors/confirm-transaction.js
index 86b10bac3..cf2848dcc 100644
--- a/ui/app/selectors/confirm-transaction.js
+++ b/ui/app/selectors/confirm-transaction.js
@@ -20,14 +20,14 @@ export const unconfirmedTransactionsListSelector = createSelector(
     unapprovedMsgs = {},
     unapprovedPersonalMsgs = {},
     unapprovedTypedMessages = {},
-    network
+    network,
   ) => txHelper(
     unapprovedTxs,
     unapprovedMsgs,
     unapprovedPersonalMsgs,
     unapprovedTypedMessages,
-    network
-  ) || []
+    network,
+  ) || [],
 )
 
 export const unconfirmedTransactionsHashSelector = createSelector(
@@ -41,7 +41,7 @@ export const unconfirmedTransactionsHashSelector = createSelector(
     unapprovedMsgs = {},
     unapprovedPersonalMsgs = {},
     unapprovedTypedMessages = {},
-    network
+    network,
   ) => {
     const filteredUnapprovedTxs = Object.keys(unapprovedTxs).reduce((acc, address) => {
       const { metamaskNetworkId } = unapprovedTxs[address]
@@ -60,7 +60,7 @@ export const unconfirmedTransactionsHashSelector = createSelector(
       ...unapprovedPersonalMsgs,
       ...unapprovedTypedMessages,
     }
-  }
+  },
 )
 
 const unapprovedMsgCountSelector = state => state.metamask.unapprovedMsgCount
@@ -78,7 +78,7 @@ export const unconfirmedTransactionsCountSelector = createSelector(
     unapprovedMsgCount = 0,
     unapprovedPersonalMsgCount = 0,
     unapprovedTypedMessagesCount = 0,
-    network
+    network,
   ) => {
     const filteredUnapprovedTxIds = Object.keys(unapprovedTxs).filter(txId => {
       const { metamaskNetworkId } = unapprovedTxs[txId]
@@ -87,7 +87,7 @@ export const unconfirmedTransactionsCountSelector = createSelector(
 
     return filteredUnapprovedTxIds.length + unapprovedTypedMessagesCount + unapprovedMsgCount +
       unapprovedPersonalMsgCount
-  }
+  },
 )
 
 
@@ -102,22 +102,22 @@ const contractExchangeRatesSelector = state => state.metamask.contractExchangeRa
 
 const tokenDecimalsSelector = createSelector(
   tokenPropsSelector,
-  tokenProps => tokenProps && tokenProps.tokenDecimals
+  tokenProps => tokenProps && tokenProps.tokenDecimals,
 )
 
 const tokenDataParamsSelector = createSelector(
   tokenDataSelector,
-  tokenData => tokenData && tokenData.params || []
+  tokenData => tokenData && tokenData.params || [],
 )
 
 const txParamsSelector = createSelector(
   txDataSelector,
-  txData => txData && txData.txParams || {}
+  txData => txData && txData.txParams || {},
 )
 
 export const tokenAddressSelector = createSelector(
   txParamsSelector,
-  txParams => txParams && txParams.to
+  txParams => txParams && txParams.to,
 )
 
 const TOKEN_PARAM_SPENDER = '_spender'
@@ -147,7 +147,7 @@ export const tokenAmountAndToAddressSelector = createSelector(
       toAddress,
       tokenAmount,
     }
-  }
+  },
 )
 
 export const approveTokenAmountAndToAddressSelector = createSelector(
@@ -172,7 +172,7 @@ export const approveTokenAmountAndToAddressSelector = createSelector(
       toAddress,
       tokenAmount,
     }
-  }
+  },
 )
 
 export const sendTokenTokenAmountAndToAddressSelector = createSelector(
@@ -197,11 +197,11 @@ export const sendTokenTokenAmountAndToAddressSelector = createSelector(
       toAddress,
       tokenAmount,
     }
-  }
+  },
 )
 
 export const contractExchangeRateSelector = createSelector(
   contractExchangeRatesSelector,
   tokenAddressSelector,
-  (contractExchangeRates, tokenAddress) => contractExchangeRates[tokenAddress]
+  (contractExchangeRates, tokenAddress) => contractExchangeRates[tokenAddress],
 )
diff --git a/ui/app/selectors/tokens.js b/ui/app/selectors/tokens.js
index 47b6e0192..1f41ddd27 100644
--- a/ui/app/selectors/tokens.js
+++ b/ui/app/selectors/tokens.js
@@ -7,5 +7,5 @@ export const selectedTokenSelector = createSelector(
   selectedTokenAddressSelector,
   (tokens = [], selectedTokenAddress = '') => {
     return tokens.find(({ address }) => address === selectedTokenAddress)
-  }
+  },
 )
diff --git a/ui/app/selectors/transactions.js b/ui/app/selectors/transactions.js
index 479002794..3986c586e 100644
--- a/ui/app/selectors/transactions.js
+++ b/ui/app/selectors/transactions.js
@@ -33,26 +33,26 @@ export const transactionsSelector = createSelector(
         .sort((a, b) => b.time - a.time)
       : txsToRender
         .sort((a, b) => b.time - a.time)
-  }
+  },
 )
 
 export const pendingTransactionsSelector = createSelector(
   transactionsSelector,
   (transactions = []) => (
     transactions.filter(transaction => transaction.status in pendingStatusHash).reverse()
-  )
+  ),
 )
 
 export const submittedPendingTransactionsSelector = createSelector(
   transactionsSelector,
   (transactions = []) => (
     transactions.filter(transaction => transaction.status === SUBMITTED_STATUS)
-  )
+  ),
 )
 
 export const completedTransactionsSelector = createSelector(
   transactionsSelector,
   (transactions = []) => (
     transactions.filter(transaction => !(transaction.status in pendingStatusHash))
-  )
+  ),
 )
diff --git a/ui/app/welcome-screen.js b/ui/app/welcome-screen.js
index 3a26e131c..c02d5a8b7 100644
--- a/ui/app/welcome-screen.js
+++ b/ui/app/welcome-screen.js
@@ -71,6 +71,6 @@ export default compose(
     mapStateToProps,
     dispatch => ({
       closeWelcomeScreen: () => dispatch(closeWelcomeScreen()),
-    })
-  )
+    }),
+  ),
 )(WelcomeScreen)
diff --git a/ui/index.js b/ui/index.js
index 8b8d6d6e7..bb5a73428 100644
--- a/ui/index.js
+++ b/ui/index.js
@@ -79,7 +79,7 @@ async function startApp (metamaskState, accountManager, opts) {
     h(Root, {
       // inject initial state
       store: store,
-    }
+    },
   ), opts.container)
 
   return store