Running Firefox on Linux? Head over to the Microsoft Silverlight install page. For the hell of it I did and clicked install. Whaddya know, it bounces to here where you can install a Firefox extension which in turns pushes out to you the latest version of moonlight. Re-visit the page and you get a codec installer (and a EULA of course) which installs $STUFF onto your boxen before asking you to F5 and lo and behold you get a swirling green circling telling you you’ve got Silverlight 1.0* installed.
For those that aren’t already aware, Moonlight est verboten in Fedora