Manually Installing Java plugin on Firefox on Oracle Linux

Assuming that you have installed Java already, if not please visit JDK site..

First identify the the plugin, I used the find command :

find /usr -name libnpjp2.so

Depending upon on architecture and JDK version you may see files like:


/usr/java/jdk1.8.0_51/jre/lib/amd64/libnpjp2.so
/usr/java/jdk1.7.0_79/jre/lib/amd64/libnpjp2.so
/usr/java/jre1.8.0_60/lib/i386/libnpjp2.so


Then change into the plugin the directory:

cd ~/.mozilla/plugins

Create a symbolic link to the Java plugin:

sudo ln -s /usr/java/jdk1.8.0_51/jre/lib/amd64/libnpjp2.so .


Then restart the firefox browser.