Firefox Implemented DNS over HTTPS DNS using Cloudflare
Mozilla Firefox Recently added NextDNS in Firefox 73 update along with Cloudflare as an additional provider with DNS over HTTPS that provides an encrypted connection for every DNS request from users.
WHAT IS DOH
DoH stands for DNS-over-HTTPS. DoH is not a new DNS protocol, but a privacy-focused improvement that lives on top of the current DNS ecosystem.
Usually, when a user types a domain name inside a browser address bar, the browser queries a DNS resolving server for the IP address where that website is located (hosted).
The problem is that DNS queries are not encrypted, and they can be viewed in clear text by anyone along the DNS query’s path — such as internet service providers, CDN providers, and other internet nodes.
DNS over HTTPS Traffic helps hide your browsing history from attackers on the network, helps prevent data collection by third parties on the network that ties your computer to websites you visit. The processing of rolling out takes a little longer time to ensure that no significant issues are discovered as this new protocol when users experience this feature in Firefox.
We’re taking cutting the cord to the next level. https://t.co/6h6w3CZ83d
— Firefox 🔥 (@firefox) February 29, 2020
DNS over HTTPS by Default for US Users
Currently, Firefox brings DNS over HTTPS by Default only for US users. If you’re outside of the US and would like to enable DoH (DNS over HTTPS), then you can enable this feature manually by allowing the following settings.
Settings -> General – > Network Setting (Scroll down to bottom) -> Enable DNS over HTTPS.
In this setting, you can enable DNS over HTTPS by clicking a checkbox, and By default, this change will send your encrypted DNS requests to Cloudflare.
By default, this change will send your encrypted DNS requests to Cloudflare. Users have the option to choose between two providers — Cloudflare and NextDNS — both of which are trusted resolvers.
This, current DNS systems are leaving billion of users vulnerable since the internet is not encrypted, and it allows ISP’s and law enforcement agencies to spy your browsing activities due to unencrypted DNS queries.
By Implementing DNS over HTTPS, DNS traffic will be fully encrypted from clients (browsers) to resolvers through HTTPS, and it never lets anyone intercepted or tampered the browsing activities and spying on the network, currently, DoH resolver managed and hosted by Cloudflare
If you’re interested in exactly how DoH protects your browsing history, here’s an in-depth explainer by Lin Clark.