I've lost a previous session because firefox updated. This happens all the time. I've lost so much time and work due to restore previous session button being grayed out. Is there a way to go back? Or do I have to try to find all of the tabs one by one in history? Is there any other way? I never get my work back like that. It's so frustrating. I'm going completely crazy from this. Any help would be very appreciated. I need to go back two sessions. Is there any way to access that? I also lose everything every time I restart. If I'm not careful any immediately restore previous session, I lose it. Is there any way to fix this issue? To make firefox remember and restart in the previous session instead of starting a new one and deleting the previous one?