Sometimes you may want to configure [http://www.mozilla.org/firefox Firefox] to open links for a special protocol in a external application. There is a quite simple way to do this but it requires knowledge about one of Firefox most usefull "hidden feature" the ''about:config'' page. On this page you can view and alter the your Firefox configuration.

* Enter about:config
* Create a new string value by right click and select New -> String. Enter ''network.protocol-handler.app.'''protocol''''' as preference name.