I followed the Firebase documentation to implement multiple authentication providers (Google and Facebook), and I am with the problem that I do not know how to solve.
Assuming my new User has Google providers and facebook with different emails is possible to perform the following login flow ?.
- User enters the first app and resolves login with your Google account
- Firebase create an account and link Google her provider.
- The user exits the application.
- User again performs login to the app, however this time he chooses the Facebook provider (which has different email Google).
- firebase links the Facebook provider the account that is already linked to Google provider.