If you will try to get the Shockwave Player from Adobe, you will have a lame surprise. They don't offer it for Linux. There are only the Windows and Mac OS versions there.
However, do not despair. There is a way to overcome this. It will only work on Firefox, but it's better than nothing. Here are the steps (the following takes place on my Ubuntu machines):
0. If you haven't already, install Firefox.
1. Install wine:
sudo aptitude install wine
2. Now download and install the Windows version of Firefox (from here); I am not kidding; you will be using wine for this purpose.
3. Install mozplugger (a useful tool that allows you to "embed" other applications in your browser):
sudo aptitude install mozplugger
4. Launch the Windows version of Firefox (using wine) and access Adobe's Shockwave and Flash test page. Install the missing Adobe Shockwave plug-in. When done, close the browser.
5. Edit the file /etc/mozpluggerrc – add these lines at the end:
application/x-director: dir,dcr,dxr,cst,cct,cxt,w3d,fgd,swa: Macromedia Director fileswallow(firefox.exe) fill stream: wine "C:\\Program Files\\Mozilla Firefox\\firefox.exe" -chrome "$file"
If you have a recent Ubuntu (from 9.04 onwards) and a decent Firefox version (at least 3.0.14), you should be able to skip the following step; otherwise, do this:
6. Remove or rename the pluginreg.dat file in Firefox's profile directory:
mv ~/.mozilla/firefox/string.default/pluginreg.dat ~/.mozilla/firefox/string.default/pluginreg.dat.bck
There you go. Now stupid Shockwave content should at least load for you. If it doesn't, have fun at using your colorful vocabulary when referring to the stupid web developers that made use of Shockwave contents.