Is it possible to use Find my Friends from my Macbook Air (10.7.5) ?

I have a Macbook Air (OS X lion 10.7.5). Is it possible to use Find my Friends from Macbook air ? I searched over internet and some discussion do say that i can have this access via iCloud. But when I log in to my icloud account in safari, I didnt have this app. Kindly reply if you have any useful information regarding it.

THanks in advance.