WINSWEEP 

Surf anonymously. Popup-blocker for the IE. Destroy Surfing Traces. Daily check for viruses and worms! Deletion of the history of the IE. Deletion of the url-list of the IE. Cookies will be deleted completly. Ad-Blocker. Anonymous Email.
surf anonymously popup-blocker ad-blocker destroy surfing traces anonymous email anti-virus

CleanCache 

CleanCache 3.0 is a free (for 1 - 2 systems), very powerful Internet Explorer 6.0, Mozilla, Firefox and Windows 2000/XP cleaner. Requires .NET Framework 1.1
mozilla firefox tracks eraser cookie index.dat privacy