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Kubuntu 9.10 (karmic) 64bit firefox java plugin

Posted by Daniel Lange on
Linux

For some unknown reason the (K)Ubuntu developers did not update the Java plugin for firefox after jaunty (yet?).

The version that Karmic (9.10) pulls out of the multiverse repository is still jaunty's (9.04).

So when you try:

apt-get install sun-java6-plugin

you'll get something like

   Reading package lists... Done
   Building dependency tree
   Reading state information... Done
   Some packages could not be installed. This may mean that you have
   requested an impossible situation or if you are using the unstable
   distribution that some required packages have not yet been created
   or been moved out of Incoming.
   The following information may help to resolve the situation:
   
   The following packages have unmet dependencies:
     sun-java6-plugin: Depends: sun-java6-bin (= 6-15-1) but 6-16-0ubuntu1.9.04 is to be installed
   E: Broken packages

Duh.

Actually if you have the Java Runtime Environment (JRE, package name sun-java6-jre) installed all files needed are already present.
Just not put in the right place on the filesystem.

So, run:

sudo apt-get install sun-java6-jre   # install JRE if needed
sudo ln -s /usr/lib/jvm/java-6-sun/jre/lib/amd64/libnpjp2.so /usr/lib/mozilla/plugins/

This will install the JRE (if it's not already installed) and will symlink the firefox plugin for java in place so that it'll be found after a browser restart.