mozilla/addon-sdk — pull request #624 by gregglind (2012-10-19 19:20:40+00:00)
Title: CoverObject, work in progress (bug 789401)

https://bugzilla.mozilla.org/show_bug.cgi?id=789401
https://gist.github.com/3900355

There is a lot of unpack here, honestly.

See: https://github.com/gregglind/lotsa_addons/tree/master/testy