This used to be a useful add-on. Now, it opens a quick-start tab every time I restart FF, makes me sign in every time instead of remembering, and doesn't remember my settings so every time I log in I have to go fix them again.

I'm so very, very glad I didn't fall for their "get premium" scam when they added restrictions to free users, because I see that paid users are having the same issues. Another good app ruined, probably by bean-counters.