You can use the script in all browsers like Mozilla Firefox, Google Chrome, Opera, Safari and internet Explorer as well.The script works pretty simple. Whenever a friend delete you from their friend list script will automatically notify you, alerts you when someone you are friends with deactivates her profile, also it helps to keep track of your friend requests as well.
1. Unfriend Finder Sript For Google Chrome and other browers
All you need to do is go to the following link - Unfriend Finder on Userscripts.Org and then install it on your Google Chrome brower as a extension.
2. Unfriend Finder Script For Mozilla Firefox
This is just simple as the first know all you need to do is go to the following link - Greasemonkey Firefox Click add to firefox and install it restart your firefox and you are done.After you have successfully installed Greasemonkey Firefox script install the first script above and you are done.
3. How it works and Install on Facebook
After you have successfully install the script you will able to see two new features on Facebook. There will be an "Unfriend" tab on the top-right of your screen and an "unfriends" option in your "favorites" list.
Now, just like the notificatons whenever someone unfriend you on facebook, a red number with count notification will appear above the "Unfriends" tab.