How to Block Facebook Beacon using Mozilla Firefox

Last week our class discussed the privacy concerns surrounding Facebook Beacon, which was launched November 6th.

Here's a link from WikiHow on how to use Firefox to completely disable Beacon.

Eventually, like the News Feed, Facebook is going to come up with their own way to permenantly opt-out (or how about even an option to opt-in??). In the meantime, Firefox users can make sure their data isn't being mined and sent out using BlockSite.

Has anyone tried this? Let me know how it went for you!