Facebook growth as the best social networking site continues and recently they have announced new features as well. If you are active on Facebook, probably you would get lots of messages and notifications about comments, new friend requests etc. For this every time you have to login to the browser to check it. But with FBNotifier, you can get all the Facebook alerts from messages and notifications right in your system tray.
You can set the update interval, minimum being 20 secs. There is also option to set the notification animation style.
It displays an icon in your system tray to let you know you have something new, without you having to open a web browser.