[wlug] Re: Firefox Will Soon Encrypt DNS Requests By Default

On Mon, 9 Sep 2019 08:57:51 +1200, Peter Reutemann quoted:

'The team is watching out for potential abuses, though, and will "revisit" its approach if attackers use a canary domain to disable the technology.'

The “canary domain” is a special indicator agreed on between Mozilla and outfits that offer parental-control systems; if Firefox detects that this domain is blocked, then that means parental controls are in effect, so the DNS-over-HTTPS system is disabled for that user. More here <https://www.theregister.co.uk/2019/09/09/mozilla_firefox_dns/>.