Cache

Supported on: Firefox 74 or later, Firefox 68.6 ESR or later

Registry

HKLM Software\Policies\Mozilla\Firefox\SanitizeOnShutdown

HKCU Software\Policies\Mozilla\Firefox\SanitizeOnShutdown

Value name: Cache

Enabled: Cache = 1

Disabled: Cache = 0

Description

If the policy is enabled, the cache is cleared when the browser is closed. If this policy is disabled or not configured, the cache is not cleared when the browser is closed.