-Software\Policies\Mozilla\Firefox\Cookies\Enabled = 0x1 | 0x0
-Software\Policies\Mozilla\Firefox\Cookies\ProviderURL = "URL_TO_ALTERNATE_PROVIDER"
-Software\Policies\Mozilla\Firefox\Cookies\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Enabled = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ProviderURL = "URL_TO_ALTERNATE_PROVIDER"
+Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Locked = 0x1 | 0x0