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I often save the tabs when closing, but when I restart I get the tabs from a two month old session. Why?

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When I save the tabs from a current session, they get lost. When the new session starts, the restoration is of a session from at least two months ago. It is always the same session. It's been going on since the date of the session that keeps coming up.

When I save the tabs from a current session, they get lost. When the new session starts, the restoration is of a session from at least two months ago. It is always the same session. It's been going on since the date of the session that keeps coming up.

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It is possible that there is a problem with the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.

Delete the files sessionstore.js and sessionstore.bak in the Firefox Profile Folder.

If you see files sessionstore-##.js with a number in the left part of the name like sessionstore-1.js then delete those as well.
Deleting sessionstore.js will cause App Tabs and Tab Groups to get lost, so you will have to create them again (make a note).

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