2 files changed, 22 insertions, 4 deletions
diff --git a/toolkit/content/about.js b/toolkit/content/about.js
index ae467d07a..c27916c10 100644
--- a/toolkit/content/about.js
+++ b/toolkit/content/about.js
@@ -5,14 +5,24 @@
 // 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");
+var releaseNotesURL;
+try {
+  releaseNotesURL = formatter.formatURLPref("app.releaseNotesURL");
+} catch(e) {
+  releaseNotesURL = "about:blank";
+}
 if (releaseNotesURL != "about:blank") {
   var relnotes = document.getElementById("releaseNotesURL");
   relnotes.setAttribute("href", releaseNotesURL);
   relnotes.parentNode.removeAttribute("hidden");
 }
 
-var vendorURL = formatter.formatURLPref("app.vendorURL");
+var vendorURL;
+try {
+  vendorURL = formatter.formatURLPref("app.vendorURL");
+} catch(e) {
+  vendorURL = "about:blank";
+}
 if (vendorURL != "about:blank") {
   var vendor = document.getElementById("vendorURL");
   vendor.setAttribute("href", vendorURL);
@@ -25,8 +35,15 @@ var versionNum = Components.classes["@mozilla.org/xre/app-info;1"]
 var version = document.getElementById("version");
 version.textContent += " " + versionNum;
 
+// insert the buildid of the XUL application
+var BuildIDVal = Components.classes["@mozilla.org/xre/app-info;1"]
+                           .getService(Components.interfaces.nsIXULAppInfo)
+                           .appBuildID;
+var buildID = document.getElementById("buildID");
+buildID.textContent += " " + BuildIDVal.slice(0,-6);
+
 // append user agent
 var ua = navigator.userAgent;
 if (ua) {
-  document.getElementById("buildID").textContent += " " + ua;
+  document.getElementById("userAgent").textContent += " " + ua;
 }
diff --git a/toolkit/content/about.xhtml b/toolkit/content/about.xhtml
index d5245928f..1f57ddcc3 100644
--- a/toolkit/content/about.xhtml
+++ b/toolkit/content/about.xhtml
@@ -24,7 +24,6 @@
   <div id="aboutLogoContainer">
     <a id="vendorURL">
       <img src="about:logo" alt="&brandShortName;"/>
-      <p id="version">&about.version;</p>
     </a>
   </div>
 
@@ -33,7 +32,9 @@
     <li>&about.license.beforeTheLink;<a href="about:license">&about.license.linkTitle;</a>&about.license.afterTheLink;</li>
     <li hidden="true">&about.relnotes.beforeTheLink;<a id="releaseNotesURL">&about.relnotes.linkTitle;</a>&about.relnotes.afterTheLink;</li>
     <li>&about.buildconfig.beforeTheLink;<a href="about:buildconfig">&about.buildconfig.linkTitle;</a>&about.buildconfig.afterTheLink;</li>
+    <li id="version">&about.version;</li>
     <li id="buildID">&about.buildIdentifier;</li>
+    <li id="userAgent">&about.userAgent;</li>
     <script type="application/javascript" src="chrome://global/content/about.js"/>
   </ul>