Hmm, unless you're trying to control what comes in/out your home network .. in which case you're screwed. But you can switch it off in your own browser.
I was a happy pihole user. I could choose to allow DNS lookups, and blacklist using OpenDNS. If I install Firefox at home, then I can't block problematic sites; and Cloudflare will use this to sell the idea to advertiser for TVs and such, so it looks like Google/Cloudflare just used Firefox to obviate ad blocking.
I also use PiHole at home, and lets be honest, if we know how to setup a PiHole, deactivating Firefox DoH is not going to be a problem for us.
DoH is not meant for us, it is meant for the average people who have no tech background. Just because it will cost us a few minutes to configure, we shouldn't deny the overall benefit it will bring to most.
I was a happy pihole user. I could choose to allow DNS lookups, and blacklist using OpenDNS. If I install Firefox at home, then I can't block problematic sites; and Cloudflare will use this to sell the idea to advertiser for TVs and such, so it looks like Google/Cloudflare just used Firefox to obviate ad blocking.