title: navigator.mozGetUserMedia does not call onvideosuccess method
body: <p>I am trying to get an web application running with the webcam video feed and I am not having any luck getting the video feed to the firefox browser. Following is my code.</p>
  
  <pre><code>navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;           
  window.URL = window.URL || window.webkitURL || window.mozURL || window.msURL;
  if(this.videoelement){
  if(this.browser.hasVideoCameraSupport())
      navigator.getUserMedia({video: true, audio: true}, 
                        function(stream) { 
                 this.videoelement.src = window.URL.createObjectURL(stream);
                 this.videoStream = stream;
                 this.videoRunning = true;
                 if (typeof callback === "function")
                                  callback(this.videoStream);
              }.bind(this) ,
                        function (err) {
              alert("Unknown Error "+err.message);
             }
               );
  } else{
      alert("You HTML dom Does have a video element!");
  }
  }   
  </code></pre>