All articles on this website can be viewed with the Firefox browser. However, in order to hear the sound with Firefox you need to do two things:

1. Install Microsoft's free Windows Media Player on your computer, if it is not already installed (it is normally installed by default).

2. Install a patch which enables Firefox to run ActiveX commands.

Please refer to the MozillaZine help page http://forums.mozillazine.org/viewtopic.php?t=206213 for details on how to do this and also security issues concerning ActiveX.