Hi mjpsports: Sorry to hear about this. # Perhaps the old tabs are in the History Menu (on Windows hit Alt first to see the History menu->Restore Previous Session)? # If not you might be able to get them from your Firefox profile ## Type in '''about:profiles''' in the address bar, then click '''Open Folder''' (Windows) or Show in Finder (Mac). Click on '''sessionstore-backups''' and then you will see files '''ending with ".js" and ".jsonlz4"''' ## Open our amazing volunteer (most of Firefox support is done by volunteers) jscher2000's "'''Scrounger'''" website: https://www.jeffersonscher.com/res/scrounger.html and then '''drag and drop the ".js" and ".jsonlz4" files one a time''' and you can hopefully retrieve your lost tabs # I figured out the above from: https://support.mozilla.org/en-US/questions/1182134#answer-1022603 Cheers! ...Roland