how can i delete facebook friends all at once?

[zaasmi]

Click on Friends to see the list of all your friends. Against each of your friend, there would be a pencil icon. Click on it and you’ll get option to Unfriend. Click Unfriend and then confirm to remove friend from your list.

Os there any option to delete in bulk.

[Love Uzair]

Please use following extension to remove all at once.
Chrome extension