Note that DoH itself does not break DNS-based adblock. Firefox is implementing DoH by changing the DNS resolver it uses to one that supports DoH – that's what will break DNS-based adblock, not DoH...
Note that DoH itself does not break DNS-based adblock. Firefox is implementing DoH by changing the DNS resolver it uses to one that supports DoH – that's what will break DNS-based adblock, not DoH itself. In comparison, Chrome will use DoH only when the default resolver supports it, so Chrome will not break DNS-based adblock
I don't understand what you mean by Google "injecting ads through HTTPS".
Helpful if you are running pfsense to filter ads via DNS. This way companies like Google can't circumvent your filters by injecting ads through HTTPS.
Note that DoH itself does not break DNS-based adblock. Firefox is implementing DoH by changing the DNS resolver it uses to one that supports DoH – that's what will break DNS-based adblock, not DoH itself. In comparison, Chrome will use DoH only when the default resolver supports it, so Chrome will not break DNS-based adblock
I don't understand what you mean by Google "injecting ads through HTTPS".