FirebaseUI Auth - Facebook Login error : Unsuccessful debug_token response from Facebook

Question

I\'m trying to integrate FirebaseUI Auth library. Google sign-in and Email sign-in are working fine but I have a problem setting up Facebook Login. This is my code:

Answer 1

I had the same problem and resolved it after re-checking the App Secret on the top right of the screen at Facebook developers page. Make sure the App Secret in Firebase Authentication(Facebook Provider) is the same as the app secret in Facebook developers page.

App secret on Facebook developers