

This should launch a new window listing various files and folders in Windows Explorer.ĭouble-click into the sessionstore-backups folder. In the first table on the page, on the Profile Folder row, click the "Open Folder" button. type or paste about:support in the address bar and press Enter.(menu bar) Help > Troubleshooting Information."3-bar" menu button > "?" Help > Troubleshooting Information.Open your current Firefox settings (AKA Firefox profile) folder using either *Help -> Troubleshooting Information -> Profile Folder/Directory:Windows: Open Folder Linux: Open Directory Mac: Show in FinderĬould you check whether your Firefox is updating the session history files during your session? You can peer on those this way: *delete sessionstore.jsonlz4 and sessionstore.js when present *remove checkmark: "Always use Private Browsing mode" *Options/Preferences -> Privacy & SecurityFirefox will: "Use custom settings for history" Is the "Restore Previous Session" item grayed (disabled) ? Windows: Open Folder Linux: Open Directory Mac: Show in Finder Help -> Troubleshooting Information -> Profile Folder/Directory:.You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.

When sessionstore.jsonlz4 is deleted you lose pinned tabs and open tabs and you will have to recreate them, so if necessary make a note or bookmark them. delete sessionstore.jsonlz4 and sessionstore.js when present.You can check for problems with the sessionstore.jsonlz4 file in the Firefox profile folder that stores session data. remove checkmark: "Always use Private Browsing mode".Options/Preferences -> Privacy & Securityįirefox will: "Use custom settings for history".Make sure you do not run Firefox in permanent Private Browsing mode (Always use Private Browsing mode Never Remember History). Is the "Restore Previous Session" item grayed (disabled) ?
