Rated 5 out of 5 stars

I played with it for a while and it DOES work. I use my main computer( soon to be a Mac too) and a shared computer- and I help lots of people out with their computers.It is such a simple concept but it really is a pain to have to delete, create and then delete cookies again for switching profiles is a real pain. Maybe when they finalize FF4 they will include something like this but for now this is very necessary in those situations and I don't see any competition. For this reason I put it in my "Apollo! Pack!" collection and it needs to be promoted to people.

This review is for a previous version of the add-on (0.5.253).