audio plugin needed for firefox

[PennyroyalFrog]

I like to visit (and i don't mean to plug the site) ytmnd.com but it seems i need a plugin for some (not all) of the audio clips that play during the different pages. I'm not really sure what I need as firefox doesn't tell me when i click the button in the upper right to download/install the plugin or whatever.

Basically, my question is, is if anybody has any idea which plugin i need. I have the kaffeine mozilla plugin installed which works for some audio and video content. Also, have java working. the audio file just seems to be a wav

Here's the source for the audio file:

<object data="http://<site>/file..wav" type="audio/wav">
<param name="autostart" value="true">
<param name="loop" value="true">
<param name="hidden" value="true">
</object>

Note: i censored the URL.

[baeksu]

mplayerplug-in works for audio as well.
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