<blockquote>Locking duplicate thread.<br> Please continue here: [[/questions/918553]]</blockquote> Usually when closing Firefox (have the latest version), the task manager still shows it in the background running. Also when I restart it, tabs are lost. I tried to replace the sessionstore.js with the backup but it still doesn't recover my tabs for some reason. I now have a sessionstore.js and also a .json file. If you can tell me how I can restore the tabs automatically instead manually searching every link, it will save me lots of hours.