The Tor Browser / file revision

 /* 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/. */

 // get release notes and vendor URL from prefs

 var formatter = Components.classes["@mozilla.org/toolkit/URLFormatterService;1"]

                           .getService(Components.interfaces.nsIURLFormatter);

 var releaseNotesURL = formatter.formatURLPref("app.releaseNotesURL");

 if (releaseNotesURL != "about:blank") {

   var relnotes = document.getElementById("releaseNotesURL");

   relnotes.setAttribute("href", releaseNotesURL);

   relnotes.parentNode.removeAttribute("hidden");

 }

 var vendorURL = formatter.formatURLPref("app.vendorURL");

 if (vendorURL != "about:blank") {

   var vendor = document.getElementById("vendorURL");

   vendor.setAttribute("href", vendorURL);

 }

 // insert the version of the XUL application (!= XULRunner platform version)

 var versionNum = Components.classes["@mozilla.org/xre/app-info;1"]

                            .getService(Components.interfaces.nsIXULAppInfo)

                            .version;

 var version = document.getElementById("version");

 version.textContent += " " + versionNum;

 // append user agent

 var ua = navigator.userAgent;

 if (ua) {

   document.getElementById("buildID").textContent += " " + ua;

 }