Problem downloading files *.rpm w/Firefox

[karigna]

I'm using the latest version of Firefox on Fedora Cora 3 but when I try to
download a file with an rpm extender for example an rpm version of MySql the
browser recognizes the file as being a RealAudio file. In this case it opens
a media playing screen within Firefox. I have not installed any plugins and
none are visible from the plugins screen. The prefs>download options does
not permit me to make an changes to the files of type dialog. Any
suggestions?

Thanks.

Kevin