In case it's not immediately obvious (no visible sign, even on hover), clicking ...

bob_kelso · on June 26, 2012

Hmm, looks like they removed this feature. It at least won't work for me (in neither chrome nor firefox).

It is fairly easy to get a link to the profiles however:

The urls to the profile-images look like this: "https://graph.facebook.com/[facebook profile id]/picture"

By replacing "graph" with "www" and removing "/picture" we get the url to the profile.