The Verge: Firefox turns controversial new encryption on by default in the US.
[1]https://www.theverge.com/2020/2/25/21152335/mozilla-firefox-dns-over-https-we
b-privacy-security-encryption

References

   1. https://www.theverge.com/2020/2/25/21152335/mozilla-firefox-dns-over-https-web-privacy-security-encryption