1 files changed, 20 insertions, 3 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;
 }