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

My pinned tabs keep disappearing when I close and restart Firefox, this isn't after a crash. How do I stop this?

  • 1 reply
  • 42 have this problem
  • 29534 views
  • آخر ردّ كتبه John99

more options

For no apparent reason my pinned tabs keep disappearing from Firefox. This has happened three times now. I haven't synced to any device. I keep my history and don't clear it.

Chosen solution

Hi Silvia,
Sorry you are having problems.

The System for storing this information seems to be a bit fragile.

When trying this Please ensure you bookmark anything open, and close any unnecessary tabs, and do not leave any work in progress,initially you could loose more than just pinned tabs. Once things go wrong multiple sessionstore files may be created, clear any duplicates by follow these instructions:

  1. See this for instructions on finding the profile. Use the Troubleshooting Information page, whilst Firefox is open Profiles - Where Firefox stores your bookmarks, passwords and other user data#w_how-do-i-find-my-profile
  2. Ensure everything is backed up or bookmarked and close Firefox
  3. Delete any duplicated sessionstore.js files found in the profile. Ones with a number or.bak
    As mentioned in http://kb.mozillazine.org/Firefox_hangs#Multiple_sessionstore.js_files
  4. Restart Firefox, you may have lost some information i.e. pinned or other tabs
  5. In future when shutting down Firefox always use the menu option, that is from the Firefox button in a Windows machine. Do not kill processes, or close the final Firefox window by using the Windows icon in the upper right.
Read this answer in context 👍 2

All Replies (1)

more options

Chosen Solution

Hi Silvia,
Sorry you are having problems.

The System for storing this information seems to be a bit fragile.

When trying this Please ensure you bookmark anything open, and close any unnecessary tabs, and do not leave any work in progress,initially you could loose more than just pinned tabs. Once things go wrong multiple sessionstore files may be created, clear any duplicates by follow these instructions:

  1. See this for instructions on finding the profile. Use the Troubleshooting Information page, whilst Firefox is open Profiles - Where Firefox stores your bookmarks, passwords and other user data#w_how-do-i-find-my-profile
  2. Ensure everything is backed up or bookmarked and close Firefox
  3. Delete any duplicated sessionstore.js files found in the profile. Ones with a number or.bak
    As mentioned in http://kb.mozillazine.org/Firefox_hangs#Multiple_sessionstore.js_files
  4. Restart Firefox, you may have lost some information i.e. pinned or other tabs
  5. In future when shutting down Firefox always use the menu option, that is from the Firefox button in a Windows machine. Do not kill processes, or close the final Firefox window by using the Windows icon in the upper right.

Modified by John99