The newest two content policy types, font and media, cannot be blocked by the built-in content blocker. As well as updating it, we should leave a comment in the content policy interface to remind people to keep it up-to-date in future.
Created attachment 558314 [details] [diff] [review] Proposed patch
Comment on attachment 558314 [details] [diff] [review] Proposed patch r=me
Pushed changeset a73f7a3b85a5 to mozilla-central.