Dear Community, i had .cfg file with following settings to clean up some userdata after closing firefox: //Clean UP Cache etc. lockPref("privacy.sanitize.sanitizeOnShutdown", true); lockPref("privacy.clearOnShutdown.cache", true); lockPref("privacy.clearOnShutdown.cookies", false); lockPref("privacy.clearOnShutdown.offlineApps", true); lockPref("privacy.clearOnShutdown.sessions", false); This cleaned the "Storage" Folder in the Firefox Profile folder, but cookies and sessions where remaining, so the logins where active. Now i saw that all useres have lots of folders in the "Storage/Default" folder. After some research i found out that this behavior startet at 02.10.2024. I also found a new pref: privacy.clearOnShutdown_v2.cookiesAndStorage which was set to "false". No idea where this key came from? When I set this key to "Yes", the storage is cleared after closing Firefox. But so also all the cookies. Was there a change at the prefs? And is ther any other solution to clear the Storage but remain the cookies? Thank you in advance!