Disable Encrypted Client Hello

Supported on: Firefox 127 or later

Registry

HKLM Software\Policies\Mozilla\Firefox

HKCU Software\Policies\Mozilla\Firefox

Value name: DisableEncryptedClientHello

Enabled: DisableEncryptedClientHello = 1

Disabled: DisableEncryptedClientHello = 0

Description

If this policy is enabled, the TLS feature Encrypted Client Hello (ECH) will be disabled. If this policy is disabled or not configured, the TLS feature Encrypted Client Hello (ECH) will be enabled.