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Why does FF open two windows when I open it? Why can't I close the second window without closing FF altogether?

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  • 3 have this problem
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  • Last reply by cor-el

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After FF automatically updated it started opening two windows whenever I start FF. One window has the open tabs from my previous session and the other window has only the FF home page open in one tab, nothing else. I can't close either window without shutting FF down altogether. I have limited RAM (3GB), running Mac Lion, which eats up a lot of resources and now FF eats up the rest. It's a real pain in the ass.

After FF automatically updated it started opening two windows whenever I start FF. One window has the open tabs from my previous session and the other window has only the FF home page open in one tab, nothing else. I can't close either window without shutting FF down altogether. I have limited RAM (3GB), running Mac Lion, which eats up a lot of resources and now FF eats up the rest. It's a real pain in the ass.

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Try with Firefox in safe mode. If it doesn't work, create a new profile and transfer your data to the new profile. See http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

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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 sessionstore.js [2] file and possible sessionstore-##.js [3] files with a number and sessionstore.bak in the Firefox Profile Folder.

Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost, so you will have to create them again (make a note or bookmark them).

See also: