diff --git a/xpfe/browser/resources/content/navigator.js b/xpfe/browser/resources/content/navigator.js
index 6cdafdd5a9ac..dff20778831c 100644
--- a/xpfe/browser/resources/content/navigator.js
+++ b/xpfe/browser/resources/content/navigator.js
@@ -1399,13 +1399,21 @@ function URLBarKeyupHandler(aEvent)
 function checkForDefaultBrowser()
 {
   const NS_WINHOOKS_CONTRACTID = "@mozilla.org/winhooks;1";
+  var dialogShown = false;
   if (NS_WINHOOKS_CONTRACTID in Components.classes) {
     try {
-      Components.classes[NS_WINHOOKS_CONTRACTID]
-                .getService(Components.interfaces.nsIWindowsHooks)
-                .checkSettings(window);
+      dialogShown = Components.classes[NS_WINHOOKS_CONTRACTID]
+                      .getService(Components.interfaces.nsIWindowsHooks)
+                      .checkSettings(window);
     } catch(e) {
     }
+
+    if (dialogShown)  
+    {
+      // Force the sidebar to build since the windows 
+      // integration dialog may have come up.
+      SidebarRebuild();
+    }
   }
 }
 
diff --git a/xpfe/components/sidebar/resources/sidebarOverlay.js b/xpfe/components/sidebar/resources/sidebarOverlay.js
index 0d156b5169c8..c0164e466750 100644
--- a/xpfe/components/sidebar/resources/sidebarOverlay.js
+++ b/xpfe/components/sidebar/resources/sidebarOverlay.js
@@ -861,6 +861,12 @@ function SidebarStopPanelLoad(header) {
 function SidebarReload() {
   sidebarObj.panels.refresh();
 }
+ 
+function SidebarRebuild() {
+  var panels = document.getElementById("sidebar-panels");
+  panels.builder.rebuild();
+  sidebar_open_default_panel(100, 0);
+}
 
 // Set up a lame hack to avoid opening two customize
 // windows on a double click.
diff --git a/xpfe/components/winhooks/nsIWindowsHooks.idl b/xpfe/components/winhooks/nsIWindowsHooks.idl
index 3902b980e131..616e725faee5 100644
--- a/xpfe/components/winhooks/nsIWindowsHooks.idl
+++ b/xpfe/components/winhooks/nsIWindowsHooks.idl
@@ -167,7 +167,8 @@ interface nsIWindowsHooks : nsISupports {
     // service is called.
     //   aParent - parent window for any dialogs that
     //             will appear
-    void checkSettings( in nsIDOMWindowInternal aParent );
+    //   Returns true if the windows integration dialog was shown
+    boolean checkSettings( in nsIDOMWindowInternal aParent );
 
     /**
      * Returns true if the "(appname) QuickLaunch" value is in the
diff --git a/xpfe/components/winhooks/nsWindowsHooks.cpp b/xpfe/components/winhooks/nsWindowsHooks.cpp
index 6f6515eee4b6..172f0913f482 100644
--- a/xpfe/components/winhooks/nsWindowsHooks.cpp
+++ b/xpfe/components/winhooks/nsWindowsHooks.cpp
@@ -273,8 +273,10 @@ static PRBool isAccessRestricted() {
 // Implementation of method that checks settings versus registry and prompts user
 // if out of synch.
 NS_IMETHODIMP
-nsWindowsHooks::CheckSettings( nsIDOMWindowInternal *aParent ) {
+nsWindowsHooks::CheckSettings( nsIDOMWindowInternal *aParent, 
+                               PRBool *_retval ) {
     nsresult rv = NS_OK;
+    *_retval = PR_FALSE;
 
     // Only do this once!
     static PRBool alreadyChecked = PR_FALSE;
@@ -407,6 +409,9 @@ nsWindowsHooks::CheckSettings( nsIDOMWindowInternal *aParent ) {
                                                               nsnull, nsnull, nsnull, labelArg, &showDialog, &dlgResult);
                                 
                                 if ( NS_SUCCEEDED( rv ) ) {
+                                    // Dialog was shown
+                                    *_retval = PR_TRUE; 
+
                                     // Did they say go ahead?
                                     switch ( dlgResult ) {
                                         case 0: