This summer's best seller tries to discuss computer security -- and gets a lot of things wrong.

Whether you want it or not, your Web activities are tracked and analyzed in many different ways. But you don't have to put up with this, especially if you are using Firefox as your primary browser. There are a few handy Firefox extensions that can beef up your favorite browser's privacy features. Here are my three personal favorites.

Ask any knowledgeable mobile user, and she will tell you that the best way to securely access the Internet in public places is through a VPN (virtual private network) connection. So if you enjoy sipping coffee at a local cafe while checking email and browsing the Web, a secure VPN connection is a good solution to protect the data traveling to and from your machine.