Bug 746970 - mbb tests time out on OS X, disable

accessible/tests/mochitest/events/test_focus_general.xul

@@ -73,6 +73,7 @@
       // show popup again for the next test
       gQueue.push(new synthClick("popupbutton", new nofocusChecker()));
 
+if (MAC) {
       // click menubutton of the 'menubutton' button while popup of button open.
       gQueue.push(new synthClick("mbb", new focusChecker("mbb"), { where: "right" }));
       // close popup, focus stays on menubutton, fire focus event
@@ -89,6 +90,9 @@
       gQueue.push(new synthUpKey("menubutton", new focusChecker("mbb_item2")));
       // click on menu item of menubutton menu, focus menubutton
       gQueue.push(new synthClick("mbb_item2", new focusChecker("mbb")));
+} else {
+      todo(false, "mbb tests time out on OS X, fix bug 746970 and reenable!");
+}
 
       // focus colorpicker button
       gQueue.push(new synthFocus("colorpicker"));