If this policy is enabled, DNS over HTTPS settings cannot be changed by the user.
If this policy is disabled or not configured, DNS over HTTPS settings can be changed by the user.
| Registry Hive | HKEY_LOCAL_MACHINE or HKEY_CURRENT_USER |
| Registry Path | Software\Policies\Mozilla\Firefox\DNSOverHTTPS |
| Value Name | Locked |
| Value Type | REG_DWORD |
| Enabled Value | 1 |
| Disabled Value | 0 |