Hi, Here are some tips that can help. 1. Make sure your '''Firefox browser is updated'''. 2. '''Right click at the top of your browser''' and '''click on Menu Bar''', this will show some helpful links that can help you to navigate your browser easily. 3. If you want to restore a lost session, at the top of the browser ('''after u have done step 2'''), '''click on History''' then you can click on '''Restore Previous Session''' or '''Recently Closed Tabs''' or '''Recently Closed Windows''' and that's it. 4. '''If Firefox ever freezes or you want to shutdown or restart your system and return to your previous sessions''', I suggest that you '''just minimize Firefox''', '''refresh your desktop like 2 or 3 times''', then '''open task manager''', '''right click on Firefox and click on end task'''. Once you run the Firefox application again, it would pop up a restore session. If it doesn't, just follow step 3 again. Hope this helps you.