diff --git a/img/icons/icon-16.png b/img/icons/icon-16.png
new file mode 100644
index 000000000..d4664c57a
Binary files /dev/null and b/img/icons/icon-16.png differ
diff --git a/img/icons/icon-32.png b/img/icons/icon-32.png
new file mode 100644
index 000000000..eca42cbc5
Binary files /dev/null and b/img/icons/icon-32.png differ
diff --git a/img/icons/icon-64.png b/img/icons/icon-64.png
new file mode 100644
index 000000000..fec1daa73
Binary files /dev/null and b/img/icons/icon-64.png differ
diff --git a/popup.html b/popup.html
index 99e584da6..e73f92a7f 100644
--- a/popup.html
+++ b/popup.html
@@ -8,12 +8,13 @@
       body { background-color: #2C3E50; }
       a {
         -webkit-border-radius: 5px;
+        -moz-border-radius: 5px;
         border-radius: 5px;
         background-color: #008cba;
         color: #fff;
         display: block;
         font-family: "Helvetica Neue","Helvetica",Helvetica,Arial,sans-serif;
-        margin: 20px 0;
+        margin: 20px auto;
         opacity: .8;
         outline: none;
         padding: 10px;