User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:106.0) Gecko/20100101 Firefox/106.0

Expected results:

Add suppport of DNS over QUIC (DoQ)
https://datatracker.ietf.org/doc/html/rfc9250

To the extent that NSS needs name resolution, it can use operating system interfaces. Applications that use NSS - like Firefox - might have more sophisticated needs.

Redirecting to the networking component. I believe that the decision thus far has been to use DoH (the H being HTTP, which might be HTTP/3, which in turn uses QUIC) over DoQ. I'll let the networking folks prioritize accordingly.

I suppose this would be a nice to have, but at the moment I don't think the benefits that are specific to DoQ are worth the engineering effort to implement it. We'll keep it in the backlog for now.