This how-to assumes you've already enabled Identity Platform, and have a basic knowledge. Please see the GitHub tutorial to learn how.
The most important steps are...
- Sign in to the Azure portal.
- Search for and select Azure Active Directory.
- Under Manage, select App registrations -> New registration.
- Enter a display Name and as redirect URI your Firebase URL.
- Select Register to complete the initial app registration.
- When registration finishes, the Azure portal displays the app registration's Overview pane. You see the Application (client) ID.
- Copy the application (client) ID.
- Add a new client secret.
- Create a new client secret.
- Enter a description and choose an expiration date.
- Copy the value of the application (client) secret.