New features to be included faster in Firefox
(extract from https://sechat.org/posts/2338602)
Firefox had 5 different versions until now: Nightly, Aurora, where the features are integrated in 6-8 weeks, Firefox Beta and then Firefox. And there is also Firefox Extend Release Support for companies.
Numbers showed us that we could removed the Aurora version if the tests are improved in Nightly: https://release.mozilla.org/firefox/release/2017/04/17/Dawn-Project-FAQ.html