If you haven't heard about the latest hacking method it is called the Poodle attack method. You can read about it here. This article tells you what each browser is doing about the issue, and also for you windows users give you a link (at the bottom) to the M$ stopgap tool.
For those who are comfortable with using the about:config settings in FF. You can change your TLS minimum setting to 1. My understanding is that changing that setting will not allow SSL 3.0 to connect.