Install Java in Chrome, Chromium or Firefox in Ubuntu

To enable Java plugin in your Linux browsers, just copy these lines into a script, and run it!

JAVA_HOME=/usr/lib/jvm/jdk1.7.0  or the path where you have installed java

MOZILLA_HOME=~/.mozilla mkdir$MOZILLA_HOME/plugins

For 32-bit systems :

ln -s $JAVA_HOME/jre/lib/i386/libnpjp2.so $MOZILLA_HOME/plugins

For 64-bit systems:

ln -s $JAVA_HOME/jre/lib/amd64/libnpjp2.so $MOZILLA_HOME/plugins

For running a script in linux use following commands:

1. Open terminal.

2. Go to the directory where you have created script. (Note: your file must have extension .sh. For example: file_name.sh )

3. Write following commands:  chmod +x <file_name>.sh

4. Now write ./<file_name>.sh

5. Restart your browser.