I read in the forum that somone had a problem with installing the shockwave plugin without administrator rights, same here
Sorry, but the thread was closed so I created a new one...
* Download the shockwave installer (.exe)
* Extract it using unpackingsoftware, such as WinRar or TugZip.
* copy the files into the firefox plugin directory (same as for flash above). No subdir is allowed, just dump all of it in the plugin-directory.
* restart firefox
Tested it with a random shockwavegame and it worked!
I tried my old favorite from Heavy.com, Iron Stomach, but it didn't work
Probably more issues than just the player, because it was written long ago in the Internet Explorer golden days Well, I guess that it isn't so bad that IE is included by default after all