i m using Firefox with IEtab (which allows IE to open in firefox tabs ), FEBE extension & profile backup, AdblockPlus with filterset, My Firefox, FireFTP, Video Downloader, Mr.tech Local Install, Context highlights, BBcode Extra, Orkut Helper, Flashgot, IDMCC, View My Currency. F.Y.I. , FEBE ( Firefox Environment Backup Extension )backs up your extensions, themes, and (optionally) your bookmarks, preferences, passwords, cookies and just about everything else Firefox offers (it can even backup/restore your entire profile. so u can use all these things if u gonna format ur windows. i m taking my profile backup daily .