Facebook is one of the platform in social media on which everyone is connected to each other. In some cases people will hide their face book friends so that other wouldn’t know how much friends do they have on Facebook. Hiding like this you won’t be able to see friends except mutual friends. But now you are not being able to keep this secret on face book. Your friend will see your friends how much you will try to hide it. You can do such things to know the hidden friends of your friend.
Install Face book friends maker extension from Google chrome.