--- a/dom/webidl/Navigator.webidl
+++ b/dom/webidl/Navigator.webidl
@@ -348,17 +348,17 @@ partial interface Navigator {
 partial interface Navigator {
   [Throws, ChromeOnly, UnsafeInPrerendering]
   readonly attribute BluetoothManager mozBluetooth;
 };
 #endif // MOZ_B2G_BT
 
 #ifdef MOZ_B2G_FM
 partial interface Navigator {
-  [Throws, CheckAnyPermissions="fmradio", UnsafeInPrerendering]
+  [Throws, ChromeOnly, UnsafeInPrerendering]
   readonly attribute FMRadio mozFMRadio;
 };
 #endif // MOZ_B2G_FM
 
 #ifdef MOZ_TIME_MANAGER
 // nsIDOMMozNavigatorTime
 partial interface Navigator {
   [Throws, CheckAnyPermissions="time", UnsafeInPrerendering]