This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

تلاش سپورٹ

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.

مزید سیکھیں

اس تھریڈ کو آرکائیوکیا گیا تھا۔ اگر آپ کو مدد کی ضرورت ہو تو براہ مہربانی نیا سوال پوچھیں۔

Restore previous session

  • 2 جواب دیں
  • 1 میں یہ مسئلہ ہے
  • 10 دیکھیں
  • آخری جواب بذریعہ cor-el

pursig39
pursig39
more options

I had to update firefox. So I closed the five windows I had open then updated. When I re-opened firefox only 3 windows re-opened. How can I restore the other windows?

I had to update firefox. So I closed the five windows I had open then updated. When I re-opened firefox only 3 windows re-opened. How can I restore the other windows?

تمام جوابات (2)

TyDraniu
TyDraniu
  • Top 10 Contributor
more options

The number of windows to restore is controlled by the browser.sessionstore.max_windows_undo preference in about:config.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Note that if you leave all windows open that there is no real limit because the complete session should be restored. Only when you close tabs and windows there is a limit on how many tabs (25) and windows (3) you can reopen when the session is restored on the next start.

Firefox also creates upgrade.jsonlz4-<build_id> files during an upgrade of Firefox in the sessionstore-backups folder.