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.

Learn More

When I start FireFox I get more than 20 windows open that I must close

  • 1 cavab
  • 4 have this problem
  • 9 views
  • Last reply by cor-el

more options

Within the last week or so every time I open FireFox for the first time after start up FireFox opens 20+ windows which I must close before I can get to the window I want.

Within the last week or so every time I open FireFox for the first time after start up FireFox opens 20+ windows which I must close before I can get to the window I want.

All Replies (1)

more options

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 [2] 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 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: