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No Sessions Backups Will Open Properly - Firefox opens empty tabs

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I've worked on the same profile for many months. I'm a tab hoarder and as such I've accumulated a lot of them over time. Until today I've always managed to restore sessions, but today Firefox seemingly broke.

I closed it, as it was starting to lag and take too many resources. When I restarted, it read my previous session, but didn't load it properly. All tabs list 'New Tab' in window 1, they other window didn't open more than one tab.

I tried to restore it through sessions backups, but it didn't help. So I started going back to older session backups, up to 2 months ago, but the same problem persisted. I exported the essentials of my profile, deleted the current one, restored it in a new profile, same problem. I restarted my PC, reinstalled firefox, didn't work. I installed an older version, problem still there. I tried closing all non-essential tabs, including the recent ones that could cause this. I ended up removing 1/3 of the tabs, but still it didn't do anything.

Ultimately, I feel like I've tried everything I could think of, but nothing works. For every older session backup, it opens empty tabs.

Hopefully someone can help :) Thanks in advance!

I've worked on the same profile for many months. I'm a tab hoarder and as such I've accumulated a lot of them over time. Until today I've always managed to restore sessions, but today Firefox seemingly broke. I closed it, as it was starting to lag and take too many resources. When I restarted, it read my previous session, but didn't load it properly. All tabs list 'New Tab' in window 1, they other window didn't open more than one tab. I tried to restore it through sessions backups, but it didn't help. So I started going back to older session backups, up to 2 months ago, but the same problem persisted. I exported the essentials of my profile, deleted the current one, restored it in a new profile, same problem. I restarted my PC, reinstalled firefox, didn't work. I installed an older version, problem still there. I tried closing all non-essential tabs, including the recent ones that could cause this. I ended up removing 1/3 of the tabs, but still it didn't do anything. Ultimately, I feel like I've tried everything I could think of, but nothing works. For every older session backup, it opens empty tabs. Hopefully someone can help :) Thanks in advance!

All Replies (3)

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Ok, I managed to find the cause of the problem sort of. I created a new, clean profile and tried to open the latest sessionstore on it and it worked. Seems like the problem lies somewhere in addons or bookmarks in my previous profile. I think I'll be able to work around this and get it all working together eventually.

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Ok, got it. For anyone with this problem in the future: I managed to restore everything except for extensions and everything is working. MozBackup ftw.

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And last update. The extension that caused this is called FlashStopper. There is actually another person who had the same issue on the same day as me who commented on their page.