How to migrate Cloud One to new Firebase account

Add Cloud One domain to new Firebase account

Authentication → Settings → Authorized domains → Add domain

Change …/html/api/conf.d/config.js file with new Firebase config

Project settings → General → Your apps → Web apps

Change …/html/api/conf.d/firebase.php file with new generated private key

Project settings → Service accounts → Firebase Admin SDK → Generate new private key

To move all existing users to new Firebase account

Add all existing users to the new Firebase manually

Authentication → Users → Add user

When users are added to the new Firebase, they need to restore they passwords from Cloud One