--- a/mail/components/preferences/general.js
+++ b/mail/components/preferences/general.js
@@ -94,18 +94,16 @@ var gGeneralPane = {
   
   /**
    * Restores the default start page as the user's start page
    */
   restoreDefaultStartPage: function()
   {
     var startPage = document.getElementById("mailnews.start_page.url");
     startPage.value = startPage.defaultValue;
-    if (startPage.hasUserValue)
-      startPage.reset();
   },
   
   /**
    * Returns a formatted url corresponding to the value of mailnews.start_page.url 
    * Stores the original value of mailnews.start_page.url 
    */
   readStartPageUrl: function()
   {