VS2005 Debugging with Firefox

I have a few co-workers that are devoted Firefox users and saw this today.

In a Visual Studio web project, the newest Firefox will open pages if it’s the default web browser.  After you exit the Firefox browser, it will close but Visual Studio is still in debug mode until you press the stop debug button or terminated the aspnet_wp.exe instance.

To get the XSL / XML debugging easier, we had to right-click the ASPX file and select “Browse With” to select Internet Explorer.

I wonder if I’m missing something.  Is there a simple way to debug web projects using Firefox or is this disconnected debugging state expected?  When I have the task of cross-browser testing, I would like to know the answer.

Thanks,
-VinceB