Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

ابحث في الدعم

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

Restore session, more than 3 windows

  • 3 ردود
  • 1 has this problem
  • 78 views
  • آخر ردّ كتبه cor-el

I have Firefox set to restore my previous session, but it will only restore 3 windows. Not always a problem, but sometimes one of those three windows is a popup I could care less about (like from pinterest, or a log off notice), but since it opened last, it gets restored, and I lose a window of 20 or more tabs.

1. How do I get lost windows back? 2. How can I configure Firefox to restore ALL windows of the previous session, and not just 3?

I have Firefox set to restore my previous session, but it will only restore 3 windows. Not always a problem, but sometimes one of those three windows is a popup I could care less about (like from pinterest, or a log off notice), but since it opened last, it gets restored, and I lose a window of 20 or more tabs. 1. How do I get lost windows back? 2. How can I configure Firefox to restore ALL windows of the previous session, and not just 3?

All Replies (3)

So what are you history setting like?

I don't see a way there -- or anywhere -- to change how many windows FF restores.

Use one of these to close Firefox if you are currently doing that by clicking the close X on the Firefox title bar.

  • "3-bar" menu button -> Exit (Power button)
  • Windows: File -> Exit
  • Mac: Firefox -> Quit Firefox
  • Linux: File -> Quit

Maybe increase the number of windows that you can restore to see if that works for you.

You can modify this pref on the about:config page.

  • browser.sessionstore.max_windows_undo (default=3)

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

Modified by cor-el