Preferred Programs

[ironee]

Is there a place to go, in Gnome, to select which programs I prefer to be used/launched as the default program?

Similarly, and more central today - how might I choose the preferred launch program (in my case, REAL) to run this from a link (in Mozilla Firefox):

javascriptlayClip('rtsp://video.c-span.org/project/fitz/fitz111105_miller.rm')

And finally, in edit->preferences, I see Plug-Ins, but have no idea how to search for and add plug-ins.


thanks for any answers forthcoming, ron