Firefox
From FreeBSDwiki
Firefox is a great browser and this documentation relates to version 1.50.
Installing Java VM plugin
Install the jdk1.4.2 native port (/usr/ports/java/jdk14)
Then to add the plugin go to the directory: /usr/X11R6/lib/browser_linux_plugins
and type the following: root# ln -s /usr/local/jdk1.4.2/jre/plugin/i386/ns610/libjavaplugin_oji.so
Now you should have java VM working. To test go to this site and wait a while for the Java VM to load: http://www.java.com/en/download/help/testvm.xml