.Net WebBrowser Control encapsulating anything else but IE? -

We are using SHDocVw.dll to provide web browser controls to some users who through a gadget Access our system on your computer Now, this control captures IEEp. Anyone knows how to find out which browser to encapsulate?

Edit - Clarity: I'm interested in encapsulating another browser. Not necessarily doing it with SHDocVw.

There is an active X control for Firefox, so that you can understand it. It is unclear whether the XULRunners activates the X control IWebBrowser2 interface (note that the axle runner says that active x is not complete.)

see:

In short this will be a lot of work.