Is there a way in which an Amazon kindle device can get the device token from FCM?
I mean, our app already works with FCM for Android and iOS devices, but particularly for Kindle devices (part of Android ecosystem) they never receive a token from FCM on FirebaseInstanceIdService.
The token is always null, then I can't have the device token to send the notification:
String refreshedToken = FirebaseInstanceId.getInstance().getToken(); //always null
How can I get that token?