Comment by byuu

You may trust Cloudflare, but I do not. I trust my DNS provider. It's fine for me, I keep up on these things and I have disabled DoH already (I don't care for any current DoH provider, and I also rely on /etc/hosts entries.) In any case, my post was only meant to inform. To each their own, use them if you like or if you trust their privacy promises more than I do. But people should be aware that Mozilla silently changed where all your DNS requests are routed to.