This tut will allow you to install a java environment that will allow you to run apps on your firefox/konqueror.

We will now install the following Java packages
sun-java6-bin - Contains the binaries
sun-java6-demo - Contains demos and examples
sun-java6-doc - Contains the documentation
sun-java6-fonts - Contains the Lucida TrueType fonts from the JRE
sun-java6-jdk - Contains the metapackage for the JDK
sun-java6-jre - Contains the metapackage for the JRE
sun-java6-plugin - Contains the plug-in for Mozilla-based browsers
sun-java6-source - Contains source files for the JDK

Installing the Java Runtime Environment

1) In terminal, enter the following command:
sudo apt-get install sun-java6-jre sun-java6-plugin sun-java6-fonts
2) Once it downloads the packages and begins the installation, you’ll get a screen that contains the Sun Operating System Distributor License for Java and hit Enter to continue. You’ll see a dialog that asks you if you agree with the DLJ license terms. Select Yes, and hit Enter; the JRE will finish installing.


First, check that the JRE is properly installed by running the following command from a terminal.
java -version
You should get similar output
java version “1.6.0″
Java(TM) SE Runtime Environment (build 1.6.0-b105)
Java HotSpot(TM) Client VM (build 1.6.0-b105, mixed mode, sharing)

Making sure java works on Firefox:

Open Firefox and type
in the address bar and check for java plugin.

Making sure Java works on Konqueror

Go to any website that uses a java applet and see if it runs. If it doesn't run, click
in the Konqueror top bar, go to
HTML Settings
and make sure the "Java" option is ticked.

Feel free to post any questions.