diff --git a/mozilla/webshell/public/nsIWebShell.h b/mozilla/webshell/public/nsIWebShell.h
index f8a3963cee4..b441f266747 100644
--- a/mozilla/webshell/public/nsIWebShell.h
+++ b/mozilla/webshell/public/nsIWebShell.h
@@ -31,7 +31,7 @@
 #include "nsIScrollableView.h"
 #include "nsIParser.h" // for nsCharsetSource only
 #include "nsISessionHistory.h"
-
+#include "nsIUrlDispatcher.h"
 
 class nsIDOMElement;
 class nsIDOMWindow;
@@ -452,6 +452,10 @@ public:
   NS_IMETHOD SetIsInSHist(PRBool aIsFrame)       = 0;
   NS_IMETHOD GetIsInSHist(PRBool& aIsFrame)      = 0;
 
+    /* Get and set the URL Dispatcher for the webshell */
+  NS_IMETHOD SetUrlDispatcher(nsIUrlDispatcher * anObserver) = 0;
+  NS_IMETHOD GetUrlDispatcher(nsIUrlDispatcher *& aResult)=0;
+
 };
 
 extern "C" NS_WEB nsresult