I disabled Java in my browsers, Chrome and Firefox, using the instructions posted on this site:

http://nakedsecurity.sophos.com/2012/08/30/how-turn-off-java-browser/

They have different instructions for different browsers---just follow the links. Their instructions were the clearest I could find.

As always, no association--- just a used their instructions.
_________________________
"Better is the enemy of good enough."