Looking for logging into the Firebase Email site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Firebase Email site. After that you can login as usual with your login credentials.
https://firebase.google.com/docs/auth/web/password-auth?hl=es-419
https://firebase.google.com/docs/auth/web/email-link-auth?hl=es-419
https://firebase.google.com/docs/auth/android/password-auth?hl=es-419
https://www.tutorialspoint.com/firebase/firebase_email_authentication.htm
https://medium.com/flutterpub/flutter-how-to-do-user-login-with-firebase-a6af760b14d5
https://stackoverflow.com/questions/37467492/how-to-provide-user-login-with-a-username-and-not-an-email
https://stackoverflow.com/questions/35120939/username-authentication-instead-of-email
https://stackoverflow.com/questions/50881467/example-of-firebase-auth-with-email-and-password-on-flutter
https://stackoverflow.com/questions/38303084/firebase-email-and-password-authentication-fails
https://www.zeolearn.com/magazine/react-and-firebase-authentication-using-email-and-password
https://postmarkapp.com/blog/sending-transactional-emails-via-firebase-and-cloud-functions
https://www.techiediaries.com/angular-course-firebase-authentication/
https://github.com/firebase/quickstart-js/blob/master/auth/email-password.html