ASP Menu ...Alignment For Child Items In Firefox not work :-(

I'm using ASP Menu .... It Works fine in IE ...but The Problem in Fire fox ... i put the asp menu inside Table Cell and I give Alignment Property for that cell to be right .....the Alignment for Childs in IE is Right Correct but in FireFox is Left :-( so how can I change the alignment for Childs to be Right and to work in Firefox
The ASP Menu Code in ASPX is :
 
<asp:Menu ID="menuAccount" runat="server" Orientation="Horizontal" DynamicHorizontalOffset="2" Font-Names="Estrangelo Edessa" Font-Size="11pt" Font-Bold="False" StaticSubMenuIndent="10px" DisappearAfter="400" StaticEnableDefaultPopOutImage="false" StaticPopOutImageUrl="~/Images/MasterPage2_ArrowHeader.jpg"> <StaticHoverStyle ForeColor="#54B8C9" /> <StaticMenuItemS ...