How to Enable Oracle Java in Your Web Browsers on Ubuntu Linux

Method 1 of 2:

Issue the following commands.
1. Type/Copy/Paste: sudo mkdir /opt/google/chrome/plugins
  1. this will create a directory called /opt/google/chrome/plugins
2. Type/Paste/Copy: cd /opt/google/chrome/plugins
  1. this will change you into the google chrome plugins directory,make sure you are in this directory before you make the symbolic link
3. Type/Paste/Copy: sudo ln -s /usr/local/java/jre1.7.0_40/lib/i386/libnpjp2.so
  1. this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Google Chrome web browser

Issue the following commands.
1. Type/Copy/Paste: sudo mkdir /opt/google/chrome/plugins
  1. this will create a directory called /opt/google/chrome/plugins
2. Type/Paste/Copy: cd /opt/google/chrome/plugins
  1. this will change you into the google chrome plugins directory,make sure you are in this directory before you make the symbolic link
3. Type/Paste/Copy: sudo ln -s /usr/local/java/jre1.7.0_40/lib/amd64/libnpjp2.so
  1. this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Google Chrome web browser

Note: Sometimes when you issue the above command you may receive a message which states:
1. ln: creating symbolic link `./libnpjp2.so': File exists
2. To correct this issue simply remove the previous symbolic link using the following command:
3. Type/Copy/Paste: cd /opt/google/chrome/plugins
4. Type/Copy/Paste: sudo rm -rf libnpjp2.so
5. Make sure you are in the /opt/google/chrome/plugins directory before you issue the command
Restart your web browser and go to Java Tester to test if Java is functioning in your web browser.

Method 2 of 2:

Issue the following commands.
1. Type/Paste/Copy: cd /usr/lib/mozilla/plugins
  1. this will change you into the directory /usr/lib/mozilla/plugins, create this directory if you do not have it
2. Type/Paste/Copy: sudo mkdir /usr/lib/mozilla/plugins
  1. this will create the directory /usr/lib/mozilla/plugins, make sure you are in this directory before you make the symbolic link
3. Type/Paste/Copy: sudo ln -s /usr/local/java/jre1.7.0_40/lib/i386/libnpjp2.so
  1. this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Mozilla Firefox web browser

Issue the following commands.
1. Type/Paste/Copy: cd /usr/lib/mozilla/plugins
  1. this will change you into the directory /usr/lib/mozilla/plugins, create this directory if you do not have it
2. Type/Paste/Copy: sudo mkdir /usr/lib/mozilla/plugins
  1. this will create the directory /usr/lib/mozilla/plugins, make sure you are in this directory before you make the symbolic link
3. Type/Paste/Copy: sudo ln -s /usr/local/java/jre1.7.0_40/lib/amd64/libnpjp2.so
  1. this will create a symbolic link from the Java JRE( Java Runtime Environment ) plugin libnpjp2.so to your Mozilla Firefox web browser

Note: Sometimes when you issue the above command you may receive a message which states:
1. ln: creating symbolic link `./libnpjp2.so': File exists
2. To correct this issue simply remove the previous symbolic link using the following command:
3. Type/Copy/Paste: cd /usr/lib/mozilla/plugins
4. Type/Copy/Paste: sudo rm -rf libnpjp2.so
5. Make sure you are in the /usr/lib/mozilla/plugins directory before you issue the command
Restart your web browser and go to Java Tester to test if Java is functioning in your web browser.