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I had 41 tabs open in about six groups over the last year and a half and I just close them and exited Firefox. Is there any way to get them back?

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I had 41 tabs open in about six groups over the last year and a half and I just close them and exited Firefox. Is there any way to get them back?

I had 41 tabs open in about six groups over the last year and a half and I just close them and exited Firefox. Is there any way to get them back?

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History menu, if it was destroyed in the last session then use "Restore Previous session:" and then restore all windows also from the history menu.

If done in this session try the restore all windows under the history menu.

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That is already gone! Restore previous session is grayed out. Is there anything else I can do? Thanks for the idea, though. I didn't know about restore previous set session. I had been aborting Firefox two get back to the previous session. Now, at least, I can do it from the menu.

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If "Restore Previous Session" isn't enabled and also Recently Closed Tabs and Windows doesn't show those closed tabs then that data is lost.


You can make a backup copy of the file sessionstore.js to have a backup of open tbs and Tab Groups and App tabs.

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Similar problem. Related to a crash in FF and then the restored window was a popup only. All the tabs and groups disappeared and restore point missing/grey.

My suggestion is to allow a save of the group/pinned/app state and then lock it down.