diff --git a/source/Ox.UI/js/Core/Fullscreen.js b/source/Ox.UI/js/Core/Fullscreen.js
index def13612..d42ee5a7 100644
--- a/source/Ox.UI/js/Core/Fullscreen.js
+++ b/source/Ox.UI/js/Core/Fullscreen.js
@@ -85,6 +85,10 @@ Ox.Fullscreen = (function() {
         });        
     }
 
+    that.available = document.fullscreenEnabled
+            || document.webkitFullscreenEnabled
+            || document.mozFullScreenEnabled || false;
+
     that.bind = function(event, handler) {
         bind(event, handler);
     };
@@ -136,4 +140,4 @@ Ox.Fullscreen = (function() {
 
     return that;
 
-}());
\ No newline at end of file
+}());
diff --git a/source/Ox.UI/js/Video/VideoPlayer.js b/source/Ox.UI/js/Video/VideoPlayer.js
index a5d21d47..ce48edcd 100644
--- a/source/Ox.UI/js/Video/VideoPlayer.js
+++ b/source/Ox.UI/js/Video/VideoPlayer.js
@@ -219,6 +219,13 @@ Ox.VideoPlayer = function(options, self) {
         }
     });
 
+    Ox.Fullscreen.bind('change', function() {
+        //FIXME: is change fired before window size is updated to fullscreen?
+        self.options.fullscreen && setTimeout(function() {
+            setSizes(true);
+        }, 250);
+    });
+
     if (Ox.isEmpty(self.options.annotations)) {
         self.options.annotations = self.options.subtitles;
     }