Facebook Pro is an app whose only function is letting you use your favorite social network without a browser. It doesn't require installation, and there are no options.
All of Facebook in an app
After launching Facebook Pro, the application will immediately load your Facebook homepage. The user experience is just what you'd expect: you can log in and read your wall, send private messages, update your status, and change your account settings, among other Facebook functions.
Unfortunately, the program doesn't include special options or add any new features that improve the usability of the social network.
An icon on the taskbar
As an app, the icon for Facebook Pro is pinned to the Windows taskbar. This means that you can easily access Facebook even if your classic browsers aren't open.
It's not exactly essential
If you always want to Facebook at hand and easily accessible from the taskbar, then Facebook Pro is the program for you.
Unfortunately, there are no big claims to fame here: the software is just a window that launches the social network, and nothing else. In addition, it uses a lot of resources; during the test, it occupied about 130MB of RAM, which is too much for such a limited app.