All Avid Facebook Users know that Facebook does not offer an inline method for users to perceive when they are un-friended. Now not only you can see a list of people who un-friended you but also you will receive a notification alert right when it happens through a new script named Unfriend Finder.
This script was built by Edouard Gatouillat and is compatible with Firefox, Internet Explorer, Chrome, Opera and Safari. It installs automatically on Chrome but the folks who use Firefox will have to install the add-on called Greasemonkey before installing it.
Check out Unfriend Finder at http://www.unfriendfinder.com/home