## Change default DNS provider of Firefox Mozilla has partnered up with Cloudflare and will resolve the domain names from the application itself via a DNS server from Cloudflare. Cloudflare will then be able to read everyone’s DNS requests. > You can disable it in “about:config" - The string value of "`network.trr.uri`" should be empty. - The string value of "`network.trr.resolvers`" should be set to `[]`. > Or in `/distribution/policies.json` (Firefox ESR) ``` ... "DNSOverHTTPS": { "Enabled": false, "ProviderURL": "https://0.0.0.0/" }, ... ``` Some other settings can also contain Cloudflare URLs. It is recommended to search for "`cloudflare`". ![The about:config page which shows the Cloudflare DNS address in the network.trr.uri string.](../image/firefox-cloudflare-dns-settings.jpg)