All of the sudden Firefox no longer opening previous windows and tabs on startup, which is how I have had it set up forever. The last few days, instead of opening previous windows and tabs when I launch FF, it opens mu Home Page. I then have to "reopen previously-closed windows " or "restore previous session." Regardless of which I choose, I then have to manually close the first FF instance (the one with the single tab - my home page). Then when I'm done with my browser and I X out of it (or Exit" out), when I come back in the same thing happens - I'm presented with my home page, not my open tabs.