On Thursday Apple disabled Java 7 on Macs that already have the plug-in installed. This just a day since we learned Mozilla added all recent versions of Java to its Firefox add-on blocklist.
The company has disabled Java 7 by updating its antimalware protection system. For reference the file in question is located on Macs here: “/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/Xprotect.plist.”
If you’re on OS X 10.6 Snow Leopard or higher, Apple has taken care of things for you. If you are using Windows or Linux, we recommend uninstalling Java if you don’t need it and disabling it if you do.