Nick Goh

https://github.com/chemerisuk/cordova-plugin-firebase-authentication/blob/c886909a1bb3560ee2bbb2a0803b2a8d5bdeaad3/src/android/FirebaseAuthenticationPlugin.java#L261 [getProviderId()](https://firebase.google.com/docs/reference/android/com/google/firebase/auth/FirebaseAuthProvider#PROVIDER_ID) always return Constant Value: "firebase" getProviders().get(0) will return "password","facebook.com", etc