> Could you elaborate on that? I see this as massively centralizing DNS request data (onto cloudflare) and this change is the most problematic part of the whole

> Could you elaborate on that? I see this as massively centralizing DNS request data (onto cloudflare) and this change is the most problematic part of the whole thing. 1. Firefox's browser marketshare is around 10%. This moves roughly 10% of DNS requests off ISP DNS providers to Cloudflare. Each of the major ISPs controls more than 10% of the broadband market. 2. It's only impacting Firefox browsers. To get an overall picture of the DNS request landscape and privacy, one has to include every DNS request made by a computing device that doesn't go through a Firefox browser. Even for Firefox users, the vast majority of their DNS requests probably don't come from web browsing in Firefox. 3. Firefox also makes it very easy to switch DNS providers to DHCP default or NextDNS. Of course users can still use custom options as well. Many Firefox users are probably savvy enough to exercise these options. Based on what I've laid out above, I would guess that this change by Firefox might be redirecting a low-single-digits percent (very possibly less than 1%) of DNS request traffic to Cloudflare vs. where it went previously. That sounds like decentralization to me.