Only play previews which are paused

public/js/vroom.js

@@ -358,11 +358,13 @@ function initVroom(room) {
       wait = 200;
       // Play all preview
       // the one in the mainVid was paused, with a reduced opacity
-      // This isn't working on FF for the moment
+      // Both preview and main vid freezes on FF when doing so :-/
       if ($.browser.webkit){
         $('#webRTCVideo video').each(function(){
-          $(this)[0].play();
+          if ($(this).get(0).paused){
+            $(this).get(0).play();
             $(this).css('opacity', '1');
+          }
         });
       }
     }
@@ -390,9 +392,11 @@ function initVroom(room) {
         // On smaller screens, the main video is hidden
         if ($.browser.webkit && $(window).width() > 768){
           $('#webRTCVideo video').each(function(){
-            $(this)[0].play();
+            if ($(this).get(0).paused){
+              $(this).get(0).play();
+            }
           });
-          el[0].pause();
+          el.get(0).pause();
           el.css('opacity', '.3');
         }
         $('#mainVideo').show(200);