hello baburkle, try this in order to get the ''most visited bookmarks'' back: enter '''about:config''' into the firefox address bar (confirm the info message in case it shows up) & search for the preference named '''browser.places.smartBookmarksVersion''' - right-click and reset that entry to the default value. afterwards a restart of the browser is necessary for the change to take effect... [[Restore the default Smart Bookmarks Folders]]