Article: Type/Paste/Copy: cd /usr/lib/mozilla/plugins this will change you into the directory /usr/lib/mozilla/plugins, create this directory if you do not have it Type/Paste/Copy: sudo mkdir -p /usr/lib/mozilla/plugins this will create the directory /usr/lib/mozilla/plugins, make sure you are in this directory before you make the symbolic link Type/Paste/Copy: sudo ln -s /usr/local/java/jre1.7.0_45/lib/i386/libnpjp2.so this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Mozilla Firefox web browser Type/Paste/Copy: cd /usr/lib/mozilla/plugins this will change you into the directory /usr/lib/mozilla/plugins, create this directory if you do not have it Type/Paste/Copy: sudo mkdir -p /usr/lib/mozilla/plugins this will create the directory /usr/lib/mozilla/plugins, make sure you are in this directory before you make the symbolic link Type/Paste/Copy: sudo ln -s /usr/local/java/jre1.7.0_45/lib/amd64/libnpjp2.so this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Mozilla Firefox web browser Sometimes when you issue the above command you may receive a message which states: ln: creating symbolic link './libnpjp2.so': File exists To correct this issue simply remove the previous symbolic link using the following command: Type/Copy/Paste: cd /usr/lib/mozilla/plugins Type/Copy/Paste: sudo rm -rf libnpjp2.so Make sure you are in the /usr/lib/mozilla/plugins directory before you issue the command

What is a summary?
Issue the following commands. Issue the following commands. Note: Restart your web browser and go to Java Tester to test if Java is functioning in your web browser.