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My tabs automatically duplicated and I can't do anything include closing them.

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  • Last reply by cor-el

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I open some tabs and group them in separate groups. Some tabs in one group automatically duplicate in that group or other groups. I can't do anything with those tabs including closing them. I just can restart Firefox and they disappear, but in a while, the problem happen again. Please help me with this problem. Thank you.

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Firefox may have had a problem and tries to restore a session from sessionstore.bak

Delete sessionstore.bak in the 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.