Hello, I hope you did not close Firefox. If your session isn't restored immediately when you started Firefox, in the '''about:home''' page is a "Restore Previous Session" button on the bottom right. Alternatively, you can go to: * History (or [[Image: New Fx Menu]] > History) > Restore Previous Session * See [[How do I restore my tabs from last time?]] or [[Restore previous session - Configure when Firefox shows your most recent tabs and windows]] If you did close Firefox, it is still possible to restore an older session assuming it was not overwritten. * https://dutherenverseauborddelatable.wordpress.com/2014/06/26/firefox-the-browser-that-has-your-backup/ You can copy one of your older session files from one of the backups described in the link above, paste it onto your desktop and shut down Firefox, then move it from your desktop into your profile folder and rename it into ''sessionstore.js''. If you need help getting to your profile folder, please see the article [[Profiles - Where Firefox stores your bookmarks, passwords and other user data]].

I cold not express how thankful am I to you!!! I renamed previous.js to sessionstore.js and all tabs went back.

For the last hour I tried everything, but only the last solution helped

Glad you got it to work