I currently have firefox 3 beta 2 and I like it alot better than firefox 2, I heard beta 3 which has alot of new features is comming out on monday and i am wondering if it is possible to upgrade using the help>check for updates and downloading it that way
I would advise against it. This is the trick used in Vista Beta. Plus read the note:
Note: This method may or may not works with current RTM release of Windows Vista (user feedback welcome), and may cause a blue screen loop or constant flicker, so use with care and proper backup is a must.