As Mozilla Firefox 3.09 released, if you are looking for Firefox 3.09 portable which you can now download from portable apps website.You can now take Firefox 3.09 in your USB drive ,plug-in to any computer and surf so that no data will be saved in that computer.
Advantages of Firefox 3.09 Portable
1.You can carry all your browsers bookmarks,settings and extensions with you where ever you go.
2.No data will be left on the computer as you are browsing web from USB drive.
3.It’s a freeware also.