With Firefox, you can send DNS queries using the DNS over HTTPS protocol.
Find a location's DoH subdomain
Set up Gateway on Firefox
Open Preferences and scroll to the bottom.
Click on Network Settings.
Click on Settings.
Check Enable DNS over HTTPS.
Choose Custom from the drop-down for Use Provider.
https://YOUR_UNIQUE_SUBDOMAIN.cloudflare-gateway.com/dns-queryin the Custom field. In place of
YOUR_UNIQUE_SUBDOMAIN, include your unique ID.
Enter about:config in the address bar.
Click on Accept the risk! if you see a prompt from Firefox.
Set network.trr.bootstrapAddress to
Set network.trr.mode to 3.
You should now be able to send queries through the DNS over HTTPS protocol.