若啟用此原則，將在瀏覽器關閉時清除快取。
若停用或不設定此原則，the cache is not cleared when the browser is closed.
| Registry Hive | HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER |
| Registry Path | Software\Policies\Mozilla\Firefox\SanitizeOnShutdown |
| Value Name | Cache |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |