diff --git a/dashboard-ui/scripts/mediaplayer.js b/dashboard-ui/scripts/mediaplayer.js
index 4e76c35244..86cc1cabee 100644
--- a/dashboard-ui/scripts/mediaplayer.js
+++ b/dashboard-ui/scripts/mediaplayer.js
@@ -569,7 +569,7 @@
 
             // viblast can help us here
             //return true;
-            return window.MediaSource != null;
+            return window.MediaSource != null && !browserInfo.firefox;
         };
 
         self.changeStream = function (ticks, params) {