diff -r 000000000000 -r 6474c204b198 toolkit/mozapps/update/content/history.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/mozapps/update/content/history.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+const NS_XUL  = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
+
+var gUpdateHistory = {
+  _view: null,
+  
+  /**
+   * Initialize the User Interface
+   */
+  onLoad: function() {
+    this._view = document.getElementById("historyItems");
+    
+    var um = 
+        Components.classes["@mozilla.org/updates/update-manager;1"].
+        getService(Components.interfaces.nsIUpdateManager);
+    var uc = um.updateCount;
+    if (uc) {
+      while (this._view.hasChildNodes())
+        this._view.removeChild(this._view.firstChild);
+    
+      var bundle = document.getElementById("updateBundle");
+      
+      for (var i = 0; i < uc; ++i) {
+        var update = um.getUpdateAt(i);
+        if (!update || !update.name)
+          continue;
+
+        // Don't display updates that are downloading since they don't have
+        // valid statusText for the UI (bug 485493).
+        if (!update.statusText)
+          continue;
+
+        var element = document.createElementNS(NS_XUL, "update");
+        this._view.appendChild(element);
+        element.name = bundle.getFormattedString("updateFullName", 
+          [update.name, update.buildID]);
+        element.type = bundle.getString("updateType_" + update.type);
+        element.installDate = this._formatDate(update.installDate);
+        if (update.detailsURL)
+          element.detailsURL = update.detailsURL;
+        else
+          element.hideDetailsURL = true;
+        element.status = update.statusText;
+      }
+    }
+    var cancelbutton = document.documentElement.getButton("cancel");
+    cancelbutton.focus();
+  },
+  
+  /**
+   * Formats a date into human readable form
+   * @param   seconds
+   *          A date in seconds since 1970 epoch
+   * @returns A human readable date string
+   */
+  _formatDate: function(seconds) {
+    var sdf = 
+        Components.classes["@mozilla.org/intl/scriptabledateformat;1"].
+        getService(Components.interfaces.nsIScriptableDateFormat);
+    var date = new Date(seconds);
+    return sdf.FormatDateTime("", sdf.dateFormatLong, 
+                              sdf.timeFormatSeconds,
+                              date.getFullYear(),
+                              date.getMonth() + 1,
+                              date.getDate(),
+                              date.getHours(),
+                              date.getMinutes(),
+                              date.getSeconds());
+  }
+};
+