Hi  I uses the Menu with the AccessKey feature.

In IE, it works well, but in firefox(Mozilla/5.0 (Windows; U; Windows NT 5.1; ja; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11)

it does work.

The Infragistics' sample link is: 

 https://ko.infragistics.com/samples/aspnet/data-menu/overview

Please suggest some solution.

Thanks.