I'm working on a firebase+angularjs app and I'm using the simple email and password authentication and it's working properly.
I'm just wondering if I can add extra user data on the user table which is being used by firebase email+password auth, like I want to add billing info and other details concerning the user without creating extra node/table on firebase to store these extra data.
Firebase stores the email/password users in a separate location, that you don't have direct access to. You cannot expand the data in this location.
Since many application developers want to access the user data in their application code, it is a common practice to store all users under a
/users
node inside the application database itself. The disadvantage is that you have to do this yourself. But the positive side of this is that you can store any extra information if you want.See the Firebase guide on storing user data for sample code. From there: