Mac Software Update: Java for Mac OS X 10.6 Update 12
Java for Mac OS X 10.6 Update 12 delivers improved security, reliability, and compatibility by updating Java SE 6 to 1.6.0_39.
On systems that have not already installed Java for Mac OS X 10.6 update 9 or later, this update will configure web browsers to not automatically run Java applets. Java applets may be re-enabled by clicking the region labeled “Inactive plug-in” on a web page. If no applets have been run for an extended period of time, the Java web plug-in will deactivate.
Please quit any web browsers and Java applications before installing this update.
See http://support.apple.com/kb/HT5575 for more details about this update.
See http://support.apple.com/kb/HT1222 for information about the security content of this update.