This facebook hack may take a few minutes to see ,first you need to have Flashget on your pc,open flashget and click File tab and then click “Add batch Download” and ;

Enter your friend’s display picture url to URL section like below http://profile.ak.facebook.com/profile5/597/103/s749469284_(*).jpg
Change numbers according to your friend’s picture number http://profile.ak.facebook.com/profile5/597/103/s749469284_362.jpg if it has 3 digits like my avatar url then let it search from 0 to 999 , if it has 4 digits then enter from 1000 to 9999 etc. then wait for downloads.