diff -r 000000000000 -r 6474c204b198 mobile/android/chrome/content/aboutFeedback.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobile/android/chrome/content/aboutFeedback.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,133 @@
+/* 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";
+
+let Cc = Components.classes;
+let Ci = Components.interfaces;
+let Cu = Components.utils;
+
+Cu.import("resource://gre/modules/Services.jsm");
+Cu.import("resource://gre/modules/Messaging.jsm");
+document.addEventListener("DOMContentLoaded", init, false);
+
+function dump(a) {
+  Services.console.logStringMessage(a);
+}
+
+function init() {
+  let anchors = document.querySelectorAll(".maybe-later");
+  for(let anchor of anchors) {
+    anchor.addEventListener("click", maybeLater, false);
+  }
+  document.getElementById("happy-link").addEventListener("click", function(evt) {
+    switchSection("happy");
+  }, false);
+  document.getElementById("sad-link").addEventListener("click", function(evt) {
+    switchSection("sad");
+  }, false);
+
+  window.addEventListener("unload", uninit, false);
+
+  document.getElementById("open-play-store").addEventListener("click", openPlayStore, false);
+  document.forms[0].addEventListener("submit", sendFeedback, false);
+  for (let anchor of document.querySelectorAll(".no-thanks")) {
+    anchor.addEventListener("click", evt => window.close(), false);
+  }
+
+  let sumoLink = Services.urlFormatter.formatURLPref("app.support.baseURL");
+  document.getElementById("sumo-link").href = sumoLink;
+
+  window.addEventListener("popstate", function (aEvent) {
+	updateActiveSection(aEvent.state ? aEvent.state.section : "intro")
+  }, false);
+
+  // Fill "Last visited site" input with most recent history entry URL.
+  Services.obs.addObserver(function observer(aSubject, aTopic, aData) {
+	document.getElementById("last-url").value = aData;
+  }, "Feedback:LastUrl", false);
+
+  sendMessageToJava({ type: "Feedback:LastUrl" });
+}
+
+function uninit() {
+  Services.obs.removeObserver(this, "Feedback:LastUrl");
+}
+
+function switchSection(aSection) {
+  history.pushState({ section: aSection }, aSection);
+  updateActiveSection(aSection);
+}
+
+function updateActiveSection(aSection) {
+  document.querySelector("section[active]").removeAttribute("active");
+  document.getElementById(aSection).setAttribute("active", true);
+}
+
+function openPlayStore() {
+  sendMessageToJava({ type: "Feedback:OpenPlayStore" });
+
+  window.close();
+}
+
+function maybeLater() {
+  window.close();
+
+  sendMessageToJava({ type: "Feedback:MaybeLater" });
+}
+
+function sendFeedback(aEvent) {
+  // Prevent the page from reloading.
+  aEvent.preventDefault();
+
+  let section = history.state.section;
+
+  // Sanity check.
+  if (section != "sad") {
+	Cu.reportError("Trying to send feedback from an invalid section: " + section);
+	return;
+  }
+
+  let sectionElement = document.getElementById(section);
+  let descriptionElement = sectionElement.querySelector(".description");
+
+  // Bail if the description value isn't valid. HTML5 form validation will take care
+  // of showing an error message for us.
+  if (!descriptionElement.validity.valid)
+	return;
+
+  let data = new FormData();
+  data.append("description", descriptionElement.value);
+  data.append("_type", 2);
+
+  let urlElement = document.getElementById("last-url");
+  // Bail if the URL value isn't valid. HTML5 form validation will take care
+  // of showing an error message for us.
+  if (!urlElement.validity.valid)
+	return;
+
+  // Only send a URL string if the user provided one.
+  if (urlElement.value) {
+	data.append("add_url", true);
+	data.append("url", urlElement.value);
+  }
+
+  let sysInfo = Cc["@mozilla.org/system-info;1"].getService(Ci.nsIPropertyBag2);
+  data.append("device", sysInfo.get("device"));
+  data.append("manufacturer", sysInfo.get("manufacturer"));
+
+  let req = new XMLHttpRequest();
+  req.addEventListener("error", function() {
+	Cu.reportError("Error sending feedback to input.mozilla.org: " + req.statusText);
+  }, false);
+  req.addEventListener("abort", function() {
+	Cu.reportError("Aborted sending feedback to input.mozilla.org: " + req.statusText);
+  }, false);
+
+  let postURL = Services.urlFormatter.formatURLPref("app.feedback.postURL");
+  req.open("POST", postURL, true);
+  req.send(data);
+
+  switchSection("thanks-" + section);
+}