How to Update Java Plugin

Taken from java.com website.


Enable and Configure
Firefox or Mozilla
To configure the Java Plugin follow these steps:
  1. Exit Firefox browser if it is already running.
  2. Uninstall any previous installations of Java Plugin.
    Only one Java Plugin can be used at a time. When you want to use a different plugin, or version of a plugin, remove the symbolic links to any other versions and create a fresh symbolic link to the new one.
  3. Create a symbolic link to the libnpjp2.so file in the browser plugins directory
    • Go to the plugins sub-directory under the Firefox installation directory
      cd <Firefox installation directory>/plugins
    • Create the symbolic link
      ln -s <Java installation directory>/lib/i386/libnpjp2.so

    Note: If you are upgrading your Java version then before creating new symbolic link you should remove old symbolic link to enable latest downloaded Java.

    To remove old symbolic link:
    type cd <Firefox installation directory>/plugins
    rm libjavaplugin_oji.so
    Example
    • If Firefox is installed at this directory:
      /usr/lib/<Firefox installation directory>
    • And if the Java is installed at this directory:
      /usr/java/<Java installation directory>
    • Then type in the terminal window to go to the browser plug-in directory:
      /usr/lib/mozilla/plugins#
    • Enter the following command to create a symbolic link to the Java Plug-in for the Mozilla browser.
      ln -s /home/Pretorians/Documents/Installer/jre1.7.0_25/lib/i386/libnpjp2.so

  4. Start the Firefox browser, or restart it if it is already up.

    In Firefox, type about:plugins in the Location bar to confirm that the Java Plugin is loaded. You can also click the Tools menu to confirm that Java Console is there.

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