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Block ads and online trackers with blockerDNS's free Firefox extension. You get the same great blocking and increased privacy as you do with our DNS-level services, but without having to fiddle with DNS settings!

Introducing blockerDNS's new free ad and online-tracker blocking Firefox extension, with NO data collection or logging!

blockerDNS lets you block ads and online trackers at the DNS level for all types of devices via DNS over TLS, DNS over HTTPS and standard DNS. But for the times you may not want to, or be allowed to, change your DNS settings, you can now get the same level of blocking with our new Firefox extension.

With nothing more than an on/off button, it's incredibly simple to use.

Source code: https://github.com/tambeb/blockerdns-extension-firefox