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.

Learn More

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

Firefox reopens previous tabs while incognito window is active

  • 6 amsoshi
  • 2 sa na da wannan matsala
  • 1 view
  • Amsa ta ƙarshe daga Graham

more options

As long as I have an incognito window open, Firefox will reopen old tabs everytime I open a new "regular" window, even if "Open previous windows and tabs" is unchecked.

As long as I have an incognito window open, Firefox will reopen old tabs everytime I open a new "regular" window, even if "Open previous windows and tabs" is unchecked.

All Replies (6)

more options

I can't reproduce this. Does it still happen in Troubleshoot Mode?

more options

You can check that those pages aren't set as multiple homepages.

You can check the homepage setting in "Settings -> Home".

Firefox supports multiple homepages separated by '|' (pipe) symbols.

more options

UPDATE: Now it's happening even when I shut down the computer. After I start up my computer, I open Firefox in an incognito window. But when I open a regular window, it reopens the lone tab that was open from when I shut down everything.

Again, "Open previous windows and tabs" is unchecked.

more options

The last session will be restored if the browser crashes or is left open while shutting down Windows. You can disable this by changing browser.sessionstore.resume_from_crash and toolkit.winRegisterApplicationRestart to false in about:config.

more options

You can possibly set browser.tabs.closeWindowWithLastTab to false in about:config to make is possibly to close Firefox with no tab opened.

more options

I am also having this issue on Firefox 124.0.1 on Windows 11. I ensured "Open previous windows and tabs" was unchecked and was also able to replicate the issue in Troubleshoot Mode.

I also tried changing both "browser.sessionstore.resume_from_crash" and "toolkit.winRegisterApplicationRestart" to false without success.

Additionally, I have noticed that even if Firefox is closed completely, if a new incognito window is opened first (e.g. by right-clicking the icon and selecting "New private window"), opening a new regular window (that's not private) will restore previously closed tabs from the last session. However, if a regular window is opened first, tabs are not restored.