Join the Mozilla’s Test Days event from 9–15 Jan to test the new Firefox address bar on Firefox Beta 135 and get a chance to win Mozilla swag vouchers! 🎁

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.

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

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

My pinned tabs keep disappearing upon opening Firefox

  • 1 èsì
  • 2 ní àwọn ìṣòro yìí
  • 6 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ cor-el

more options

I have about 6 - 8 pinned tabs. Upon opening Firefox (Mac OS), sometimes one pinned tab disappears, and now, most recently, almost all have disappeared. Restarting Firefox a couple times still hasn't repopulated my original pinned tabs.

Any help/explanation would be appreciated.

I have about 6 - 8 pinned tabs. Upon opening Firefox (Mac OS), sometimes one pinned tab disappears, and now, most recently, almost all have disappeared. Restarting Firefox a couple times still hasn't repopulated my original pinned tabs. Any help/explanation would be appreciated.

All Replies (1)

more options

Pinned tabs are stored as part of session data in sessionstore.jsonlz4.

Make sure you do not close open windows, but close the Firefox application (Firefox -> Quit) while all window(s) are still open.

On Mac things can be more complicated because you can close all open windows, but keep Firefox running with the menu bar visible or minimized to the Doc.