Didn't notice anything good nor bad prior to FF 58.0. Now after upgrading to 58.0 from I think v 57.03 FF has black menus, black Help/About Window, plus numerous sites fail to load at all. Just blank white or black screens. Disabled 360 and all sites and FF menus work fine again. Not sure if 360 is trying to tell me my browser is hacked or if there is simply a problem with this extension. IDK. Just glad to have my browser back.