Firefox for Android Community Forum

I am using NextDNS as the system-wide DNS on Android (via Private DNS / NextDNS app). Other apps consistently use NextDNS as expected. However, in Firefox for Android, even after explicitly disabling DNS over HTTPS (Secure DNS), I still observe that some DNS queries appear to be resolved by other DNS providers. This behavior is intermittent and occurs on both Wi-Fi and mobile networks. My understanding is that when DoH is disabled, Firefox should strictly use the system DNS resolver. So my questions are: Does Firefox for Android have any internal DNS fallback or alternative resolution path even when DoH is turned off? Is this behavior expected by design, or could it be a bug? Are there any additional settings or advanced options required to force Firefox to always use the system DNS? Any clarification would be appreciated.

Hi When I enter an IP address from my network, Firefox does not connect to my network but instead tries to look up this IP address on the internet. For example, when I enter: 192.168.xxx.yyy/ or http://192.168.xxx.yyy

How can I access my local network?

I been a Firefox since around 2010 (desktop) now on Android i even love this despite of heaviness in resources but efficient, there's only reason why i keep not using Firefox on Android, it is the mobile data bandwidth usage, even with strict ETP and pair it with ublock origin (easy mode or medium mode) and localcdn (that should help saves mobile data) but still consume high mobile data. Like just opening a comics style website brave uses obly around 30 probably 50 mb max but in Firefox it already consume around 100-120 mb.