Thanks a bunch, Aaron! I went out looking for how to do this and Google popped your site right up. As to why you would want Firefox on a thumbdrive Jeff- a couple reasons I can think of:
1) It’s just plain a better browsing experience.
2) All your favorite extensions & bookmarks ready to go at your fingertips, even while on the road (such as when making repair trips to another’s PC).
3) I can only recall one exploit thus far… do you really want to count IE’s?
4) Everything would be self-contained on the thumbdrive: pop it into someone else’s computer, surf the net without changing their average settings to your power-user settings, without leaving a mess in their history trail, without leaving them cookies, without leaving … you get the point.
5) No popups by default, a huge plus when trying to clean out some one else’s spyware- and adware-infected PC
6) No extensions installed that you didn’t put there – again handy when trying to clean out some one else’s infected PC.