Java Applet on 64 bit Linux

I have been working on an Ubuntu 9.10 (64 bit system) from some time. I had read some stories of problems running 64 bit Java Applets on 64 bit Firefox, so when I needed to use Applets I did some googling to figure out how to do it.

I came across a couple of posts. Some had different solutions for different versions (3.5, 3.6) of Firefox, and they also wanted me to use IcedTea. The solution I used is outlined here, and it worked perfectly well for me.

Note: You may not have libnpj2.so in the same place mentioned below.

mkdir ~/.mozilla/plugins/
ln -s /usr/lib/jvm/jre1.6.0_12/lib/amd64/libnpjp2.so ~/.mozilla/plugins/

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