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Restore older session

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  • Letzte Antwort von FredMcD

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Hello Support,

I'm dying inside right now. I had over 400 tabs open and launched a second instance of Firefox. After that I closed the first instance and restarted my computer. Now the 400 tabs are gone and even with "Restore session" I have no success. Is there any way to restore the tabs no matter how?

Warm greetings Ileies

Hello Support, I'm dying inside right now. I had over 400 tabs open and launched a second instance of Firefox. After that I closed the first instance and restarted my computer. Now the 400 tabs are gone and even with "Restore session" I have no success. Is there any way to restore the tabs no matter how? Warm greetings Ileies

Ausgewählte Lösung

Restore Session will bring back what was there when the browser closed. By closing the window that had the tabs you wanted, the restore lost that data.


This might help; 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: https://www.jeffersonscher.com/res/scrounger.html


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

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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Ausgewählte Lösung

Restore Session will bring back what was there when the browser closed. By closing the window that had the tabs you wanted, the restore lost that data.


This might help; 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: https://www.jeffersonscher.com/res/scrounger.html


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

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.