Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

updated to 23.0.1 now I have 16 blank 'new tabs' instead of my 16 saved tabs.

  • 1 ŋuɖoɖo
  • 3 masɔmasɔ sia le wosi
  • 1 view
  • Nuɖoɖo mlɔetɔ cor-el

more options

Updated Firefox this morning, then restarted my computer. Now my tabs are gone, my groups are gone, my pinned tabs are gone. Session Manager shows that my sessions are there but will not restore last session or previous to last. (Using tab mix plus session manager.)

Restore previous session under History brings up a choice of the last web pages I visited, not the pages that I had in my tabs.

Updated Firefox this morning, then restarted my computer. Now my tabs are gone, my groups are gone, my pinned tabs are gone. Session Manager shows that my sessions are there but will not restore last session or previous to last. (Using tab mix plus session manager.) Restore previous session under History brings up a choice of the last web pages I visited, not the pages that I had in my tabs.

All Replies (1)

more options

You can check for problems with the sessionstore.js and sessionstore.bak files in the Firefox profile folder that store session data.

Delete the sessionstore.js file and possible sessionstore-##.js files with a number and sessionstore.bak in the Firefox profile folder.

Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost and you will have to recreate them (make a note or bookmark them if possible).