Bug 802504 - Disable test_fullscreen-api.html on 10.8

content/html/content/test/test_fullscreen-api.html

@@ -95,14 +95,18 @@ function runNextTest() {
   }
 }
 
-try {
-  window.fullScreen = true;
-} catch (e) {
-}
-is(window.fullScreen, false, "Shouldn't be able to set window fullscreen from content");
+if (isOSXMtnLion) {
+  todo(false, "Mountain Lion doesn't like this test (bug 802504)");
+} else {
+  try {
+    window.fullScreen = true;
+  } catch (e) {
+  }
+  is(window.fullScreen, false, "Shouldn't be able to set window fullscreen from content");
 
-addLoadEvent(nextTest);
-SimpleTest.waitForExplicitFinish();
+  addLoadEvent(nextTest);
+  SimpleTest.waitForExplicitFinish();
+}
 
 </script>
 </pre>