#Firefox just announced a new #privacy feature: Encrypted Client Hello (ECH). In short, it encrypts the very first message the browser sends out to initiate an encrypted communication tunnel (TLS channel) with a website.

"ECH uses a public key fetched over the Domain Name System (DNS) to encrypt the first message between a browser and a website, protecting the name of the visited website from prying eyes and dramatically improving user privacy."

https://blog.mozilla.org/en/products/firefox/encrypted-hello/