RadMenu Goes Behind Flash Object

Q: Why does my RadMenu goes behind flash objects in Firefox browser?

A: Set the W-MODE attribute of the Flash to opaque (preferably) or transparent.

To the Embed tag, add the following attribute:

ASP.NET

<embed ... wmode="opaque" ...>			

Here is a couple of articles for additional information on Flash and W-MODE options:

Flash, DHTML Menus and Accessibility

WHAT IS W-MODE?