Disable java plugins and stand by

[jwzguy]

http://thenextweb.com/insider/2013/01/10/new-java-vulnerability-is-being-exploited-in-the-wild-disabling-java-is-currently-your-only-option/

[MysteryMiner]

If I'm right then this is only a elevation of privileges attack known for at least 2 weeks. Unsinged Java app launching with all priviledges of signed app.

Disabling Java plugins in FF are best approach even without knows vulnerabilities. Did not use Java in browser even once in last 2 years.