Rated 4 out of 5 stars
Febe crashes in FF 3.6 while making a full back-up. :(
FireFox gives a pop-up saying that a script has crashed and Febe stops working.
Please fix Febe, the other best back-up add-on, Profile Manager and Synchronizer, is buggy (the dialog windows don't fit over all the buttons and i can't see half of them), so Febe is my only good choice. :(