Can you point to a Mozilla announcement that says they'll turn on DOH by default in a regular non-experimental non-nightly release?
This is what Mozilla says in their DOH blog:
Our second effort focuses on building a default configuration for DoH servers that puts privacy first.
We are running a shield study where some Nightly users will participate in one or more experiments to help us build out a secure, cloud-based service that handles DoH requests. All Nightly users will receive an in-product notification about these studies.
Cloudflare is our partner for these experiments. When a shield study is active, Nightly Firefox will automatically use Cloudflare’s secure DNS over HTTPS service (though we aren’t using the famous 1.1.1.1 address). The first study will test whether DoH’s performance is up to the task.
"We’d like to turn this on as the default for all of our users. We believe that every one of our users deserves this privacy and security, no matter if they understand DNS leaks or not."
This is what Mozilla says in their DOH blog:
Our second effort focuses on building a default configuration for DoH servers that puts privacy first.
We are running a shield study where some Nightly users will participate in one or more experiments to help us build out a secure, cloud-based service that handles DoH requests. All Nightly users will receive an in-product notification about these studies.
Cloudflare is our partner for these experiments. When a shield study is active, Nightly Firefox will automatically use Cloudflare’s secure DNS over HTTPS service (though we aren’t using the famous 1.1.1.1 address). The first study will test whether DoH’s performance is up to the task.