Back out delayedInit, it's a race problem waiting to happen. Keeping some of the goodness of that patch though, like setting session history before hooking up the progress listener. sr=hyatt

xpfe/browser/resources/content/navigator.js

@@ -428,29 +428,9 @@ function Startup()
   gNavigatorRegionBundle = document.getElementById("bundle_navigator_region");
   gBrandRegionBundle = document.getElementById("bundle_brand_region");
 
+  gBrowser = document.getElementById("content");
   gURLBar = document.getElementById("urlbar");
 
-  // Do all UI building here:
-
-  setOfflineStatus();
-
-  // set home button tooltip text
-  var homePage = getHomePage();
-  if (homePage)
-    document.getElementById("home-button").setAttribute("tooltiptext", homePage);
-
-  try {
-    var searchMode = pref.GetIntPref("browser.search.mode");
-    setBrowserSearchMode(searchMode);
-  } catch (ex) {
-  }
-
-  // call rest of init on timer so the window shows early
-  setTimeout(delayedInit, 0);
-}
-
-function delayedInit()
-{
   var webNavigation;
   try {
     // Create the browser instance component.
@@ -468,6 +448,21 @@ function delayedInit()
     return;
   }
 
+  // Do all UI building here:
+
+  setOfflineStatus();
+
+  // set home button tooltip text
+  var homePage = getHomePage();
+  if (homePage)
+    document.getElementById("home-button").setAttribute("tooltiptext", homePage);
+
+  try {
+    var searchMode = pref.GetIntPref("browser.search.mode");
+    setBrowserSearchMode(searchMode);
+  } catch (ex) {
+  }
+
   // initialize observers and listeners
   window.XULBrowserWindow = new nsXULBrowserWindow();
   window.buttonPrefListener = new nsButtonPrefListener();