Comment 2 for bug 1167449

Yes, for Instragram support we would need a UOA plugin first, and then once that was in place we could move forward with adding support in friends. See here for an example of how to create a new UOA plugin:

https://code.launchpad.net/~jpds/account-plugins/linkedin-plugin/+merge/154406

(scroll down for the diff showing everything that needs to be done).