Firebase 3 Authentication with Emberfire and Torii

I'm trying to authenticate with Firebase's email/password provider, but keep getting the following error:

Uncaught TypeError: Cannot read property 'open' of undefined

Here's what my app looks like:

app/torii-adapters/applications.js

import Ember from 'ember';
import ToriiFirebaseAdapter from 'emberfire/torii-adapters/firebase';

export default ToriiFirebaseAdapter.extend({
     firebase: Ember.inject.service()
});

app/adapters/application.js

import Ember from 'ember';
import FirebaseAdapter from 'emberfire/adapters/firebase';

const { inject } = Ember;

export default FirebaseAdapter.extend({
  firebase: inject.service()
});

app/templates/components/login-cmp.hbs

 ...   
                  <form class="col s12">
                      <div class="row">
                        <div class="input-field col s12">
                          {{input
                            id="userEmail"
                            type="email"
                            value=email
                            class="validate"
                          }}
                          <label for="email">Email</label>
                        </div>
                      </div>
                      <div class="row">
                        <div class="input-field col s12">
                          {{input
                            id="userPassword"
                            type="password"
                            value=password
                            class="validate"
                          }}
                          <label for="password">Password</label>
                        </div>
                      </div>
                      <div class="row">
                        <div class="col s12 m4">
                          <button class="btn waves-effect waves-light btn-large mt-20 mb-10" type="submit" {{action 'signIn' email password}}>Sign in
                            <i class="material-icons right">send</i>
                          </button>
                        </div>                    
                      </div>
                    </form>

app/components/login-cmp.js

signIn: function(email, password) {
      this.get('session').open('firebase', { provider: 'password', email: email, password: password}).then(function(data) {
        console.log(data.currentUser);
      });
    }, 

Using the same config/environment.js setup shown on https://github.com/firebase/emberfire with my firebase projects domains and key. Also have

torii: {
      sessionServiceName: 'session'
    },

I also have the email/password provider Enabled on my firebase account.

Not sure where the disconnect is. Any help is much appreciated. Thanks!
* Ember-CLI v2.11 * Emberfire v2.0.6 * Torii v0.8.1 * Node v6.9.5

The signIn action button does not tell your ember app what provider you are using, only the login credentials were provided, it should look like:

{{action 'signIn' "password" email password}}

and finally your signIn action code should look like:

signIn() {
  let controller = this;
  this.get('session').open('firebase', { provider: 'password', email: this.get('email') || '', password: this.get('password') || ''}).then(function(data) {
    console.log(data.currentUser);
  });
},