Are you using HTTPS when you browse Facebook? You should be. But only 2% of the FB users worldwide are. [Turn it on like this: Top right corner: Account, Account Settings, Account Security - Check the first box - Browse Facebook on a secure connection (https) whenever possible.]
Here’s another privacy tip – turn on the “Do not track” option in Firefox 4 and Internet Explorer 9.
Introduced in Firefox 4, the do-not-track option is fairly well buried.
Internet Explorer 9 includes a do-not-track feature that is even better hidden. To enable this functionality, you need to click the Sprocket -> Safety -> Tracking Protection -> Your Personalized List -> Enable.
Why these settings aren’t enabled by default is beyond me. No, really, it’s all about the money. Advertising dollar$.
You’re welcome.</end privacy hygiene lesson>