CleanMOCache is a free (for 1 - 2 systems), very powerful Mozilla/Netscape/Firefox/Opera and Windows XP cleaner. It will delete all browser tracks, AutoComplete, WinXP tracks and the deletion of user created additives. The following is a comprehensive list:
Mozilla/Netscape/Firefox/Opera cache files Mozilla/Netscape/Firefox/Opera History and index.dat Mozilla/Netscape/Firefox/Opera Cookies (with selective save) Mozilla/Netscape/Firefox saved logins (with selective save) Mozilla/Netscape/Firefox/Opera Typed URLs Mozilla/Netscape/Firefox/Opera Form AutoComplete Recent Documents Start Run History Search History Windows Temporary Directory Windows Media Player Windows Word Pad Microsoft Office Applications Clipboard Registry MRUs Recycle Bins Create additives to delete user specified files/directories and registry entries Secure wiping (Single pass, DoD and NSA deletions)