If you want to know who has deleted you from a friend on Facebook, now you can do it very easily thanks to Unfriend Finder...
This is a free add-on for Chrome, Firefox, Safari and Internet Explorer that tells you who has deleted you from their friends list, who has rejected your friend request and who has not yet responded.
Once you have installed Unfriend Finder, open Facebook and with a glance to the left you will immediately notice a new icon (-1) under your Favorites. There you will be able to be informed about all those who consider you undesirable. Each time someone deletes you, you will receive a notification in just a few seconds.
The Unfriend Finder can be downloaded from here.
Source: Techgear.gr