Issue 5587- Use dedicated mobile options page in Firefox Mobile

options.js

Index: options.js
===================================================================
--- a/options.js
+++ b/options.js
@@ -17,6 +17,11 @@
 
 "use strict";
 
+// In Edge the namespace for extension APIs is 'browser'. The 'chrome' object,
+// while available does not contain the runtime object needed below.
+if (typeof chrome == "undefined" || typeof chrome.runtime == "undefined")
+  window.chrome = window.browser;

[Sebastian Noack, 2017/10/09 15:29:27]

This fallback is duplicated in ext/common.js. However, since we don't want to
increase the usage of ext, but eventually get rid of it, I suggest to move the
code from ext/common.js that isn't specific to ext, into a separate script and
is included everywhere where ext/common.js is used and in options.js. An
appropriate name for such a script would be polyfill.js, and its content should
look like this:

  // In Edge the namespace for extension APIs is 'browser'. The 'chrome' object,
  // while available does not contain the runtime object needed below.
  if (typeof chrome == "undefined" || typeof chrome.extension == "undefined")
    window.chrome = window.browser;

  // Workaround since HTMLCollection, NodeList, StyleSheet and
  // CSSRuleList didn't have iterator support before Chrome 51.
  // https://bugs.chromium.org/p/chromium/issues/detail?id=401699
  let arrayIterator = Array.prototype[Symbol.iterator];
  if (!(Symbol.iterator in HTMLCollection.prototype))
    HTMLCollection.prototype[Symbol.iterator] = arrayIterator;
  if (!(Symbol.iterator in NodeList.prototype))
    NodeList.prototype[Symbol.iterator] = arrayIterator;
  if (!(Symbol.iterator in StyleSheetList.prototype))
    StyleSheetList.prototype[Symbol.iterator] = arrayIterator;
  if (!(Symbol.iterator in CSSRuleList.prototype))
    CSSRuleList.prototype[Symbol.iterator] = arrayIterator;

+
 let iframe = document.getElementById("content");
 
 iframe.onload = () =>