Fix for bug # 82236. r=valeski sr=alecf a=blizzard(drivers@mozilla.org)

suite/browser/nsBrowserStatusHandler.js

@@ -232,6 +232,7 @@ nsBrowserStatusHandler.prototype =
   onLocationChange : function(aWebProgress, aRequest, aLocation)
   {
     var location = aLocation.spec;
+    domWindow = aWebProgress.DOMWindow;
 
     if (this.hideAboutBlank) {
       this.hideAboutBlank = false;
@@ -241,9 +242,12 @@ nsBrowserStatusHandler.prototype =
 
     // We should probably not do this if the value has changed since the user
     // searched
-    this.urlBar.value = location;
-    SetPageProxyState("valid");
-    
+    // Update urlbar only if a new page was loaded on the primary content area
+    // Do not update urlbar if there was a subframe navigation
+    if (domWindow == domWindow.top) {
+      this.urlBar.value = location;
+      SetPageProxyState("valid");
+    }
     UpdateBackForwardButtons();
   },