diff -r 000000000000 -r 6474c204b198 mobile/android/chrome/content/Feedback.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/chrome/content/Feedback.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,18 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+var Feedback = {
+  observe: function(aMessage, aTopic, aData) {
+    if (aTopic !== "Feedback:Show")
+      return;
+
+    // Only prompt for feedback if this isn't a distribution build.
+    try {
+      Services.prefs.getCharPref("distribution.id");
+    } catch (e) {
+      BrowserApp.addTab("about:feedback", { selected: true, parentId: BrowserApp.selectedTab.id });
+    }
+  }
+};