Mozilla began introducing DNS above the HTTPS for Firefox to ensure that the DNS decision is reliable. You may also delete certain domains from Firefox DNS over the HTTPS. Firefox provides a large configuration for DoH, mostly for the organizations that depend on the DNS. If you need to delete certain domains from the firefox DNS over HTTPS, then this post might be useful for you. Keep on reading to follow the instructions. Delete Certain Domains From Firefox DNS Over HTTPS Firefox provides the method to insert the specific domain so that they may bypass DNS over the HTTPS. Though you have to insert domains via Firefox configuration manually. If you want to delete certain domains from firefox DNS over HTTPS, then abide by the given steps: Insert about:config in the address box. Click on Enter. Accept the message of a warning page. Locate the network.trr.excluded-domains. Tap on Edit beside the preference. Insert domains, split by the commas to list. Click on tick mark...