After recent Firefox updates (most likely during August 2014), several pop-up menus and the like no longer show the actual content. The menu frame and some buttons still appear, but the main "business" part of the menus are gone! For example, the Firefox Tools->Options menu shows NOTHING but an empty frame and the "OK", "Cancel", and "Help" buttons. This is difficult to explain in words, but since I don't see any way to post images here, allow me to link to my post on the Mozillazine forum where image posting is allowed: http://forums.mozillazine.org/viewtopic.php?f=38&t=2872799 The problem definitely exists in FF 32.0.2 and 32.0.3, but I suspect it existed earlier. The same problem exists on every Windows 7 computer I own.