How to set DoH on Firefox

Upgrade your Firefox to latest version

Make sure you have installed the latest version of Firefox, or you can download it here .

Go to Settings

Input about:preferences in address bar and search DNS over HTTPS on search bar.

Set DNS.SB DoH Server

On the Enable DNS over HTTPS using page, choose Increased Protection, select provider as Custom, and enter:

https://doh.dns.sb/dns-query