How to set up DoH (DNS over HTTPS) in Mozilla Firefox (and optionally block ads)

Enhance your privacy and security with this guide!

If you don’t know what DoT or DoH are, check out my earlier post!

This guide assumes you are running the latest version of Firefox, which you should be doing anyway, as it’s important to keep your browser up to date for security.

Let’s do this!

First click on the menu button in Firefox, at the top right and then choose Preferences.
Scroll way down, until you reach Network Settings and click on Settings…
Scroll down and check Enable DNS over HTTPS and either use the default Cloudflare or choose custom and paste the address of your provider into the text field and press OK

As you can see, I am using AdGuard. This has the additional bonus of blocking ads!

Looking for a list of providers? Check my earlier post!

That was easy!

Check out my guide for Android and iOS!