diff --git a/dashboard-ui/scripts/mediaplayer.js b/dashboard-ui/scripts/mediaplayer.js
index 842da57f91..efe6630ccc 100644
--- a/dashboard-ui/scripts/mediaplayer.js
+++ b/dashboard-ui/scripts/mediaplayer.js
@@ -114,6 +114,9 @@
                 if ($.browser.chrome) {
                     return '.webm';
                 }
+                
+                // Firefox suddenly having trouble with our webm
+                return '.webm';
             }
 
             return '.mp4';