After the latest update, in addition to having to import my roboform data from chrome because firefox "lost" it, firefox no longer restores previous tabs on startup. I have checked the settings and in General, the checkbox to restore previous tabs on startup IS CHECKED, however, every time I reopen firefox, only a single tab with my chosen homepage appears on startup. It is annoying to have to redo my tabs every time I restart firefox, and all of the help pages just say to check restore previous session / tabs. However, as I said before, that box is ALREADY CHECKED, and yet firefox still refuses to restore tabs on startup. How do I fix this?