diff --git a/mozilla/browser/base/content/openLocation.js b/mozilla/browser/base/content/openLocation.js
index 48b0c4fedc6..eda80aa3d07 100644
--- a/mozilla/browser/base/content/openLocation.js
+++ b/mozilla/browser/base/content/openLocation.js
@@ -63,6 +63,12 @@ function onLoad()
   dialog.openWhereList.selectedItem = dialog.openTopWindow;
 
   if (pref) {
+    try {
+      var useAutoFill = pref.getBoolPref("browser.urlbar.autoFill");
+      if (useAutoFill)
+        dialog.input.setAttribute("completedefaultindex", "true");
+    } catch (ex) {}
+
     try {
       var value = pref.getIntPref("general.open_location.last_window_choice");
       var element = dialog.openWhereList.getElementsByAttribute("value", value)[0];