all my passwords stopped saving.

''I can not recover last session'' You can check for problems with the sessionstore.js and sessionstore.bak files in the Firefox profile folder that store session data. Delete the sessionstore.js file and possible sessionstore-##.js files with a number and sessionstore.bak in the Firefox profile folder. *Help > Troubleshooting Information > Profile Directory: Show Folder *http://kb.mozillazine.org/Profile_folder_-_Firefox *http://kb.mozillazine.org/Multiple_profile_files_created Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost and you will have to recreate them (make a note or bookmark them). You can use this button to go to the Firefox profile folder: *Help > Troubleshooting Information > Profile Directory: Show Folder If you use cleanup software like CCleaner then check the settings for the Firefox application. ---- ''all my passwords stopped saving.'' It is possible that there is a problem with the key3.db and signons.sqlite files that store the encrypted names and passwords in Firefox.<br /> Rename the key3.db and signons.sqlite files in the Firefox profile folder.<br /> You can add .old to the file names (key3.db.old and signons.sqlite.old) or move them to another folder to make it possible to undo the action.<br /> You need to set a new Master Password after renaming or deleting key3.db and all currently saved passwords are lost.<br /> If that has worked then you can remove the renamed files that are no longer needed. *http://kb.mozillazine.org/Password_Manager#Troubleshooting