Ubuntu – Java will not run in Chromium, Google Chrome and Firefox

Alternate install Java for Chrome, can also install icedtea:

 sudo apt-get install icedtea-7-plugin

Then link icedtea in to chromium plugin folder thusly

cd /usr/lib/chromium-browser/plugins

and link

sudo ln -s /usr/lib/jvm/java-7-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so 

I needed to build the icedtea package from 12.10. First I downloaded

https://launchpad.net/ubuntu/+archive/primary/+files/icedtea-web_1.2-2ubuntu3.debian.tar.gz and

https://launchpad.net/ubuntu/+archive/primary/+files/icedtea-web_1.2.orig.tar.gz

Then extracted the orig.tgz file into a build folder, and the debian.tgz into the folder the previous extraction created (icedtea-web-1.2).

Then I cd'ed into the icedtea-web-1.2 folder and ran

dpkg-buildpackage-uc -b

As necessary, I installed dependencies, and then I had several packages in the build folder. I ran

sudo dpkg -i *7-plugin* *netx*

(With wildcards around

to install the necessary files.