Controlling Running Mozilla App

Hello,

  I would like to control an existing Firefox window from a Java app
running on Kubuntu Edgy.  I need to intercept Mozilla events like
clicking on links etc.  Could someone point me to the easiest way to
do this without SWT?  My existing code is in Swing.  I have already
spent a few days with Jrex on my Kubuntu system and got nowhere...
most of the directions are for Windows.

  Embedding the browser in the Java window would be nice, but is not
necessary.  I just need control over the browsing experience from
Java.  Any information would be most appreciated.  I have run through
the instructions on
http://developer.mozilla.org/en/docs/JavaXPCOM:Embedding_Mozilla_in_a_Java_Application_using_JavaXPCOM

and got the common GTK init error.

Thanks,
  Josh Zeidner