How can I get the Facebook identifiers of all of my Facebook friends? I mean the numbers like 7843652532 or 93923423.
Either via an URL, a Facebook app, a browser extension, or anything.
Any format would be OK, for instance a text list or JSON.
(I am using these IDs to associate with my address book, since many of my friends change names.)
Best Answer
You get this is JSON format by going to http://developers.facebook.com/docs/reference/api
About the 4th paragraph you need to click the link next to "Friends" (which is https://graph.facebook.com/me/friends) however the link on the page includes an Authorization token which is require to run the query.
This will give a JSON result of all friends names and Facebook ID's