If the policy is enabled, sire preferences arecleared when the browser is closed.
If this policy is disabled or not configured, site preferences 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 | SiteSettings |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |