I block facebook, twitter and others + ads with my DoH server, but recently Firefox seems to do something nasty as it resolve successfully the domain and others...

Is it bypassing my DoH because he gets a NXDOMAIN???

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@Shaft was at 2, set to 5, same... Not sure where is the problem for now.

I see the requests, but the browser is doing classical DNS requests after the DoH? Should verify that with tcpdump/wireshark... But not the time now.

@benoit Ah ! The custom DoH is set in FF :)

5 disables DoH. You can put it back to 2 or 3, the difference being there is a fallback mechanism with 2 and not with 3.

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