How to enable Java in Mac OS Monutain Lion
July 30, 2012
After upgrading to Monutain Lion - Java wasn't working in web browsers by default. Apple switched to software updates in App Store.
So to install / update Java, open terminal and type
/Applications/Utilities/Java Preferences.app/Contents/MacOS/Java Preferences
You should see dialog box with install button
Don't forget to restart the browser.