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

Tabs disappear on reboot, start-up

  • 3 replies
  • 1 has this problem
  • 3 views
  • Last reply by FredMcD

more options

‘When I open Firefox, I lose all of the tabs I'd been working with the day before. What do I do so that Firefox saves yesterday's tabs and load them when Firefox first loads the next day?’ for ‘Firefox’

‘When I open Firefox, I lose all of the tabs I'd been working with the day before. What do I do so that Firefox saves yesterday's tabs and load them when Firefox first loads the next day?’ for ‘Firefox’

All Replies (3)

more options

Press the Alt or F10 key to bring up the toolbar. Then History > Restore previous Session


You may have corrupt sessionstore [v56] sessionstore.jsonlz4 file(s). Delete all sessionstore* files and the sessionstore-backups folder.

Don't delete the files if you need to rescue any data from them, just move them out of the profile folder to some location where Firefox doesn't look for them. You can try to read out their contents using this tool: https://www.jeffersonscher.com/res/scrounger.html


Type about:support<enter> in the address box.

Under Troubleshooting Information on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show or Open Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder

Linux: Under the page logo on the left side, you will see Application Basics. Under this find Profile Directory. To its right press the button Open Directory.

Locate the above file. Then rename or delete it. Restart Firefox.

more options

What I do.

1. On the first page ('General') of Settings, I select the option at the top "Open previous windows and tabs". 2. I leave the window(s) and tabs open when I quit using the Quit command in the menu.

I am able to delete browsing history before I quit, the window(s) and tabs from the previous session open when I start Firefox again.

more options

Did you follow the instructions I posted?