Firefox logging out my accs from web every update

   Make sure Firefox is not set to clear cookies on exit:
   Settings → Privacy & Security → Cookies and Site Data → disable
   “Delete cookies and site data when Firefox is closed”.
   Check if you use any “cleaner” apps like CCleaner, antivirus browser cleanup, or Windows optimizer tools - they can delete Firefox session files after updates.
   Open about:profiles and verify that Firefox always launches with the same profile after updating.
   Disable extensions related to privacy/security temporarily (cookie auto-delete, ad blockers, antivirus extensions, etc.).
   In about:config, ensure:
       privacy.clearOnShutdown.cookies = false
       browser.privatebrowsing.autostart = false
   If the issue started recently, try installing the latest Firefox version manually from Mozilla’s official website instead of updating through a third-party package/manager.
   Also check whether Firefox has permission to write inside the profile folder. Corrupted profile permissions can cause logouts after updates.

This usually happens when Firefox loses or resets the cookies/session database after updates. Try these fixes: Make sure Firefox is not set to clear cookies on exit: Settings → Privacy & Security → Cookies and Site Data → disable “Delete cookies and site data when Firefox is closed”. Check if you use any “cleaner” apps like CCleaner, antivirus browser cleanup, or Windows optimizer tools - they can delete Firefox session files after updates. Open about:profiles and verify that Firefox always launches with the same profile after updating. Disable extensions related to privacy/security temporarily (cookie auto-delete, ad blockers, antivirus extensions, etc.). In about:config, ensure: privacy.clearOnShutdown.cookies = false browser.privatebrowsing.autostart = false If the issue started recently, try installing the latest Firefox version manually from Mozilla’s official website instead of updating through a third-party package/manager. Also check whether Firefox has permission to write inside the profile folder. Corrupted profile permissions can cause logouts after updates. If none of this works, create a brand-new Firefox profile and test it for a few updates.