Installing Sun's Java Browser Plugin on Firefox (Hoary)

% sudo ln -s /usr/lib/j2re1.5-sun/plugin/i386/ns7/libjavaplugin_oji.so /usr/lib/mozilla/plugins/

% sudo ln -s /usr/lib/j2re1.5-sun/plugin/i386/ns7/libjavaplugin_oji.so /usr/lib/mozilla-firefox/plugins/

Restart the Browser and check if it worked by going to this http://www.java.com/en/download/help/testvm.xml