recovery.baklz4 (previous version of sessionstore.jsonlz4 written during runtime).recovery.jsonlz4 (latest version of sessionstore.jsonlz4 written during runtime).previous.jsonlz4 (cleanBackup: copy of sessionstore.jsonlz4 from previous session that was loaded successfully).You will normally find these files in the sessionstore-backups folder: Windows: Open Folder Linux: Open Directory Mac: Show in Finderīackup the session files in the sessionstore-backups folder in the Firefox profile folder to make sure not to lose possible important session data.ĭo NOT close Firefox when Firefox is already running. Help -> More Troubleshooting Information -> Profile Folder/Directory:.You can use the button on the 'Help -> More Troubleshooting Information' (about:support) page to go to the current Firefox profile folder or use the about:profiles page (Root directory). I am not sure whether there are some tips to try to load the 'restore previous session ' again for the first firefox browser I closed.Ĭan you reopen closed windows (History -> Recently Closed Windows) ?ĭo you have a recent upgrade.jsonlz4- in the sessionstore-backups folder in the Firefox profile folder? I haven't closed my firefox browser for almost 40 days so it will be very hard for me to search the history webpage to find out them one by one. but honestly speaking, I have 15 around webpages in the firefox brower and some of them are viewed around 20 days or 30 days before. since those webpages I was viewing are important webpage I need to check, May someone tell me how to get those valuable webpage link again? I know I can try to find those webpage link slowly by checking all the history day by day. but this time no previous session can be loaded. Then I have to open firefox brower again, and try to click 'settings'- ' history' -' Restore previous session' to try to retrieve all the webpages I was viewing in the first time. I closed the firefox browser in the beginning with many valuable webpage still opened, after I restart the firefox browser, I close the browser by accident without firstly reloading all the restore previous session. Hello, I know when I closed the firefox browser, I can reopen firefox browser and click 'settings'- ' history' -' Restore previous session' to retrieve all the webpages I was viewing last time.īut this time it seems I made a mistake.

Reset mozilla firefox browser