ci - deps - download latest chrome and firefox

circle.yml

@@ -3,4 +3,15 @@ machine:
     version: 8.1.4
 test:
   override:
-    - "npm run ci"
+    - "npm run ci"
+dependencies:
+  pre:
+    - sudo apt-get update
+    # get latest stable firefox
+    - sudo apt-get install firefox
+    - firefox_cmd=`which firefox`; sudo rm -f $firefox_cmd; sudo ln -s `which firefox.ubuntu` $firefox_cmd
+    # get latest stable chrome
+    - wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
+    - sudo sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
+    - sudo apt-get update
+    - sudo apt-get install google-chrome-stable