emberfire.js

// for @sunoceansand from comments on http://blog.willrax.com/oauth-with-firebase-and-ember
// change the login() in emberfire.js like so:

	login: function() {
		var _this = this;  // cache this for usage within the Ember.RSVP.Promise
		return new Ember.RSVP.Promise(function(resolve, reject) {
			_this.get("ref").authWithOAuthPopup("facebook", function(error, user) {
				if (user) {
					resolve(user);
				} else {
					reject(error);
				}
			},
 
			{
				remember: "sessionOnly",
				scope: "email"
			});
		});
	},