-] Firefox/Chrome (search in this blog)
[-] Charles Proxy (search in this blog)
Steps:
1)Open NS
2)Open Charles
3)Set Break Points to apps.facebook.com
4)Enter Style Shop
5)Execute 1x -->Edit Response -->AMF -->hair_data -->46 -->vendor: change to true -->close 46
6)open 47 -->vendor: change to true -->close 47
7)OK,now disable breakpoints and execute 1x
8)In style shop, u'll see the ANBU hairstyle and buy it
9)Refresh the page and u'll have the hairstyle bought
thanks to: http://komgue.blogspot.com