Software :: Setting Association Between PLS File Type And A Given Media Player In Firefox?

Kernel 2.6.21.5, Slackware 12.0 When I click on some audio stream links in my web browser (Mozilla Firefox), the stream comes in a URL ending in .pls, usually listen.pls. As I want mplayer to play it and not the default player, I intend to make the first the default one. In Firefox (2.0.0.4) I can do Edit>Preferences>Content>File Types>Manage and change the actions associated with each file type. However, if the type is, say, PDF, I can can only change the action if a PDF file has anytime been downloaded. So, the same goes for a PLS file.

You have an example of the kind of link I talk about here: [URL] In the case of a radio broadcast audio stream, I am not downloading it, I think. At least, the Download window does not open. The Download window not having open itsef, the PLS type does not appear in the window Edit>...>File Types>Manage leads to. And so, I cannot change the action. The action would be 'Open them with this application': mplayer.