The Two Main Firebase Authentication Methods 1. The Two Main Firebase Authentication Methods Firebase offers several authentication methods, including *Email/Password* and *Google Sign-In*. Some developers enable only Google as the provider, while others allow the creation of accounts with passwords. This depends on the choices made in the Firebase console. 2. Why Some Sites Allow Password Resets When a site uses email and password authentication, Firebase offers a built-in password reset function. This sends an email to the associated account with a secure link. This mechanism is absent if the site uses only Google as the provider. 3. The Case of Sites with Google Sign-In Only Sites that exclusively use Google Sign-In do not manage passwords themselves. The user is redirected to Google to authenticate. Therefore, Firebase cannot offer a password reset, as this is managed by Google.