test.html

<html ng-app="myapp">
  <head>
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.min.js"></script>
    <script src='https://cdn.firebase.com/v0/firebase.js'></script>
    <script src='https://cdn.firebase.com/libs/angularfire/0.3.0/angularfire.min.js'></script>
  </head>
  <body ng-controller="MyController">
    <div id="messagesDiv">
      <div ng-repeat="msg in messages"><em>{{msg.from}}</em>: {{msg.body}}</div>
    </div>
    <script>
      var app = angular.module("myapp", ["firebase"]);
      app.provider('something',function(angularFire) {
        console.log("blah");  
      });
      function MyController($scope, angularFire) {
        var ref = new Firebase("https://wi15p6ds1kj.firebaseio-demo.com/");
        $scope.messages = [];
        angularFire(ref, $scope, "messages");
      }
    </script>
  </body>
</html>