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Firefox crashed during a Private Window Session - I lost tabs - help?

  • 2 replies
  • 1 has this problem
  • Last reply by cor-el

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The tabs I had open were important to me and I went on a deep dive into the history of China and I'd like to reopen all of those tabs even if they are to be made public as I don't know if I can remember to reopen all of them.

Is there a way to find the tabs I had opened???

Any help would be appreciated!

All Replies (2)

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You may have corrupt sessionstore [v56] sessionstore.jsonlz4 file(s). Delete all sessionstore* files and the sessionstore-backups folder.

Don't delete the files if you need to rescue any data from them, just move them out of the profile folder to some location where Firefox doesn't look for them. You can try to read out their contents using this tool:

Type about:support<enter> in the address bar.

Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder

Linux: Under the page logo on the left side, you will see Application Basics. Under this find Profile Directory. To its right press the button Open Directory.

Locate the above file. Then rename or delete it. Restart Firefox.


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It is not possible to recover tabs from a PB mode session and that is the risk you take when you are using PB mode and get a crash. You would have to bookmark tabs/links that are important to be able to restore those pages.

Do you regularly get crashes as that is a reason to be more cautious with using PB mode ?


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