Android Question FirebaseAuth Google-Facebook

Stefano Di Chiano said:

let's say I sign in with google. If I sign out and then I click on the sign in button again, it doesn't let me choose a new profile, but it enters automatically on the previous one. Is it supposed to work that way? Is it possible to disable this option and force the reauthentication every time someone click on the sign in button?

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This is the browser behavior. You can try to sign out from Google in the browser

Stefano Di Chiano said:

I was testing if all the sign in methods worked. I signed in with google and it worked (except for the previous point). I signed out and tried to sign in with facebook but it failed and the following line in the logs showed:

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The only thing that you can do is to delete the user in the developer console.

I was able to solve the first problem. Now whenever I sign in with google it asks with which account I want to do it. Now I have the same issue with the facebook sign in method though.

For the second problem I found the setting on firebase console that allow me to sign in with different methods even if using the same email. The problem is that if I now sign in with facebook I cannot get the email. I saw other threads talking about this issue but I didn't find a solution.
Anyway, correct me if I'm wrong, it is probably better to turn off that setting for security reasons.

Stefano Di Chiano said:

Anyway, correct me if I'm wrong, it is probably better to turn off that setting for security reasons.

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I don't see any security issue with this however it requires more investigation. You should check it in Firebase documentation.

Erel said:

You should check it in Firebase documentation.

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I will, thanks for the help.