I'm currently have Mac OS X 10.7.5 with Safari 6.1.1 (7537.73.11).
I have installed the plugin, but after I try to press "Subscribe" button - Safari opens a new window with error descriptions. Is there any way to use inline error validation instead? I also tried on my iPhone - same result (iOS 5.1.1).
I tried to use Chrome 31.0.1650.63 - and it looks perfectly fine there.