[bitbiter]

From their main page[1]:

> Does Privacy Badger contain a "black list" of blocked sites?

> No, unlike other blocking tools like AdBlock Plus, we have not made decisions about which sites to block, but rather about which behavior is objectionable. Domains will only be blocked or screened if the Privacy Badger code inside your browser actually observes the domain collecting unique identifiers after it was sent a Do Not Track message. Privacy Badger does contain a whitelist of some sites that are known to provide essential third party resources; those sites show up as yellow and have their cookies blocked rather than being blocked entirely. This is a compromise with practicality, and in the long term we hope to phase out the whitelist as these third parties begin to explicitly commit to respecting Do Not Track.

[1]: https://www.eff.org/privacybadger