The observer subject for CSP still looks awful (as pointed out in the middle of https://bugzilla.mozilla.org/show_bug.cgi?id=607067#c33). Even though this is never exposed to the user, we could change this to something more meaningful. Solving this bug includes: - finding out if any add-on listens to this specific observer subject and notifying the authors. - making up a string that looks neat - changing it :)

nvm. I can just change it in #909241..