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

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.

pinned tab won't go away

  • 1 reply
  • 0 have this problem
  • 3 views
  • Last reply by cor-el

jsyeager
jsyeager
more options

There is a pinned tab that shows up on start-up that I cannot get rid of. I have unpinned the tab and exited Firefox but everytime I return it shows up again. I have even removed and reinstalled Firefox.

Help. This is annoying.

There is a pinned tab that shows up on start-up that I cannot get rid of. I have unpinned the tab and exited Firefox but everytime I return it shows up again. I have even removed and reinstalled Firefox. Help. This is annoying.

All Replies (1)

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

Pinned tabs are stored in sessionstore.jsonlz4 in the Firefox profile folder, so there might be a problem with this file.

You can check for problems with the sessionstore.jsonlz4 file in the Firefox profile folder that stores session data.

  • rename/remove sessionstore.jsonlz4 and a possible sessionstore.js

You may also have to rename the sessionstore-backups folder.

When sessionstore.jsonlz4 is deleted you lose pinned-tabs and open tabs and you will have to recreate them, so if necessary make a note or bookmark them. sessionstore.jsonlz4 is only present in the Firefox profile folder when Firefox is closed.

You can use the button on the "Help -> More Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page (Root directory).

If that doesn't help then check for issues caused by installed extensions.

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or userChrome.css is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window