Firefox loads Ads - other browsers don't

[jfb]

Your debug log isn't showing any problems.

Look in the Firefox Preferences > General > Network Settings and ensure you don't have DNS over HTTPS enabled. If you enable this, the DNS requests will bypass your Pi-Hole.

Here is a good FAQ that will help you determine where the ads are coming from. Note that Pi-Hole logs will only show DNS requests that are processed by Pi-Hole (and won't show any that bypass Pi-Hole).

How do I determine what domain an ad is coming from?

Block ads or fix broken sites This FAQ is written in the context of finding out how to block an ad that isn't blocked automatically, but the same steps can be used to troubleshoot issues with sites that don't function properly. An example is that sometimes certain payment gateways try to collect metrics on the sale, but these domains are blocked by Pi-hole, so the payment cannot be processed. Also, some links send you through several referrers and if one of them is blocked, you may land on a …