Site Preferences

If the policy is enabled, site preferences are cleared when the browser is closed.

If this policy is disabled or not configured, site preferences are not cleared when the browser is closed.

Supported on: Firefox 74 or later, Firefox 68.6 ESR or later
Registry HiveHKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry PathSoftware\Policies\Mozilla\Firefox\SanitizeOnShutdown
Value NameSiteSettings
Value TypeREG_DWORD
Enabled Value1
Disabled Value0

firefox.admx

Administrative Templates (Computers)

Administrative Templates (Users)