Tom T. wrote:To know why the difference, we'd have to compare all of the settings, configurations, permissions, in NoScript, possibly in Firefox and perhaps in other add-ons, between you and your friend. But so long as your problem is solved, probably not worth the time to figure out why.
Even that might not be enough; Facebook might be showing different things to different people, based on what is being included in their news feed. Eg if they've only rolled out akamaihd to certain countries, and you have friends in those countries, then you might get content served from akamaihd, while another account might not. There's really no telling what Facebook will do; they roll out changes whenever and however they please.
What I can say is that akamaihd on Facebook is normal, and allowing it is probably safer than allowing facebook.com itself...