The blog post linked from the release notes has some more information about AV1: https://medium.com/mozilla-tech/mozilla-celebrates-release-of-free-high-qualit

The blog post linked from the release notes has some more information about AV1: https://medium.com/mozilla-tech/mozilla-celebrates-release-of-free-high-quality-video-compression-technology-av1-in-firefox-65-7c95f2b7e56 https://medium.com/mozilla-tech/mozilla-celebrates-release-o...