How to uninstall?

Hello, i install this only to give a try, it's nice addon but because i wanna try also others, i'm going to uninstal.... and can't find New Tab Page in my extentions. If i visit Chrome Store at the speed dial section, i can see NTP and indeed i see the little green oblique stripe that say: "added". That means it's recognized as well by the Store, but i can't get rid of it.... how to? Thanks in advance to whom help me.