UnfriendApp is an application that notifies you whenever someone unfriends you on Facebook. If one of your friends deletes their Facebook profile, UnfriendApp will notify you about these changes as well.
UnfriendApp checks your friends list every 15 minutes to see who has unfriended you, and then automatically alerts you about any changes.
It is a browser add-on which lets you search via your favorite search engine
The WOT add-on is a crowd-sourced enhancement to your browser protection
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