Using:
Java 1.4.2_04
SuSE Linux 9.0
"firefox $URL$" as the web browser in LimeWire's options.

When I right click anything in my library and choose "Magnet details for file," firefox opens up and the site http://localhost.be/ loads which typically only happens if the "localhost" port limewire is passing refused the connection. Sadly, I can't see what port that is before localhost.be loads.