Following codebase used to work with firebase 2.3.1 and Angularfire 1.1.3
Var fb = new firebase(\"https://database name.firebaseio.com\"); var fbObj = $fire
you should not upgrade your firebase to 3.0 because AngularFire upgrade to 3.0 has not been completed.
See Issue in GitHub : https://github.com/firebase/angularfire/issues/718