We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Rohkem teavet

When launching FF 4.x in win7 a random number of FF windows open

  • 3 vastust
  • 1 on selline probleem
  • 1 view
  • Viimati vastas marcopolo

more options

Just upgraded and when clicking my FF launch button on my win7 machine it opens a random number of FF windows but never just one.

Just upgraded and when clicking my FF launch button on my win7 machine it opens a random number of FF windows but never just one.

All Replies (3)

more options

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

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

  • Help > Troubleshooting Information > Profile Directory: Open Containing 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).

See:

more options

OK did all that and the first time after that starting FF gave me just 1 window as it should be, but already the second time it gave me 2 windows and now after 4 times there are 3 windows upon startup

more options

Just tried it again and it gave me 1 blank window not a window with the tabs that were there when I closed FF. Tried a couple more times and either I got 1 blank window or 2 blank window after 4 times 1 window with my previous open tabs