The Facebook login doesn't work anymore since I upgraded the Firebase app to the new Console (only)

Question

I had a working app with Facebook & Email Login feature, since I upgrade the Firebase console (only, the sdk has not been update).

The app release before the Fir

Answer 1

In Facebook Developper Console, switch-off the option about the "app key that is integrated in the client".

For me this changed the behavior. I will give more information as far I get from Firebase/Facebook

Here is a French Screenshot to help you setting up Facebook: