Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Why does Windows update kill most of my Firefox windows?

  • 1 reply
  • 0 have this problem
  • 7 views
  • Last reply by TyDraniu

wannabowl
wannabowl
more options

I usually have 10 or so Firefox Windows open - each with 5-10 tabs. Everything should be running in the same instance of Firefox as each Window was opened with the "New WIndow" command in the "File" dropdown menu. When I let MS WIndows update run I usually have only 2-4 windows restored. When only Firefox updates, all windows are properly restored.

I usually have 10 or so Firefox Windows open - each with 5-10 tabs. Everything should be running in the same instance of Firefox as each Window was opened with the "New WIndow" command in the "File" dropdown menu. When I let MS WIndows update run I usually have only 2-4 windows restored. When only Firefox updates, all windows are properly restored.

All Replies (1)

TyDraniu
TyDraniu
  • Top 10 Contributor
more options

Please increase value of the browser.sessionstore.max_windows_undo preference in about:config.