If you want to use DNS-over-HTTPS, you can add domain names to "network.trr.excluded-domains" in "about:config" (if, for example, you always use the .dev TLD fo

If you want to use DNS-over-HTTPS, you can add domain names to "network.trr.excluded-domains" in "about:config" (if, for example, you always use the .dev TLD for custom hostnames in your hosts file, you can simply exclude that domain name). If not, well, just disable DNS-over-HTTPS entirely. See https://wiki.mozilla.org/Trusted_Recursive_Resolver https://wiki.mozilla.org/Trusted_Recursive_Resolver for even more DoH-related settings you can tweak.