For the 32-bit Fedora, below instruction will be work fine.
cd /home/your_account/.mozilla/plugins
ln-s /usr/java/jre*/plugins/i386/ns7/libjavaplugin_oji.so
Restart firefox and check a applet.
But in x86_64, there is no libjavaplugin_oji.so. Sun's java plugin installation location is
/jdkX.X/jre/lib/amd64/libnpjp2.so
[jchoi@/home/jchoi/.mozilla/plugins]ln -s /opt/java1.6/jre/lib/amd64/libnpjp2.so
It works find after restarting the firefox.






