Integrate amule and firefox via ed2k

For system wide configuration just add the following to /etc/xulrunner-1.9/system-greprefs.js

// ED2K link handling
pref("network.protocol-handler.external.ed2k", true);
pref("network.protocol-handler.app.ed2k", "/usr/bin/ed2k");
pref("network.protocol-handler.expose.ed2k", false);

The above is done on Ubuntu 8.04 ( with amule-utils installed )