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Why does Firefox for Android resolve some DNS queries outside system DNS even when DoH is disabled?

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, ev… (read more)

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.

Asked by WillowHeHe 1 month ago

Clicking links on Gmail (android) always leads to "Unable to connect"

Everytime I try to click a link on Gmail it leads me to a FF page saying "Unable to connect. The site could be temporarily unavailable or too busy. Try again in a few mo… (read more)

Everytime I try to click a link on Gmail it leads me to a FF page saying "Unable to connect. The site could be temporarily unavailable or too busy. Try again in a few moments. If you are unable to load any pages, check your device’s data or Wi-Fi connection."

I tried to deactivate all privacy and protection within the settings, but it behaves the same way. Am I missing something here?

It can be good, but mostly it's annoying. Thanks!

Asked by filipecardigosoliveira 2 months ago

IP Address

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 en… (read more)

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?

Asked by info13346 2 months ago

Last reply by info13346 2 months ago

Mobile Data bandwidth usage

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 Fir… (read more)

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.

Asked by John Jhermie Cruz 4 months ago

Last reply by alex 4 months ago