Enables stats in FF.

index.html

     <script src="libs/popover.js?v=1"></script><!-- bootstrap tooltip lib -->
     <script src="libs/toastr.js?v=1"></script><!-- notifications lib -->
     <script src="interface_config.js?v=5"></script>
-    <script src="libs/app.bundle.js?v=126"></script>
+    <script src="libs/app.bundle.js?v=127"></script>
     <script src="analytics.js?v=1"></script><!-- google analytics plugin -->
     <link rel="stylesheet" href="css/font.css?v=7"/>
     <link rel="stylesheet" href="css/toastr.css?v=1">

modules/statistics/RTPStatsCollector.js

 
 /* Whether we support the browser we are running into for logging statistics */
 var browserSupported = RTCBrowserType.isChrome() ||
-    RTCBrowserType.isOpera();
+    RTCBrowserType.isOpera() || RTCBrowserType.isFirefox();
 /**
  * Calculates packet lost percent using the number of lost packets and the
  * number of all packet.
         );
     }
 
-    if (config.logStats && browserSupported) {
+    // Logging statistics does not support firefox
+    if (config.logStats && (browserSupported && !RTCBrowserType.isFirefox())) {
         this.gatherStatsIntervalId = setInterval(
             function () {
                 self.peerconnection.getStats(