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Firefox doesn't connect to custom DNS provider when DNS-over-HTTPS is set to "Max Protection"

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  • Slědne wótegrono wót jonzn4SUSE

erne.d
erne.d
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Hello guys, as in title - I use custom NextDNS set of rules on DNS-over-HTTPS. As of today, Firefox can't connect to the provider. AFAIK Troubleshoot Mode is also affected. The other devices using NextDNS on my network work just fine and when I set the DNS to work system-wide as a kind of workaround, I don't get an issue. Same when I use other DNS-over-HTTPS options in the Firefox Preferences. Yesterday the problem didn't occur and I haven't performed any updates since yesterday - both Firefox and NetworkManager seem to be up to date.

Additional info: OS: EndeavourOS (Arch Linux) Firefox version: 129.0.2

If any other info is needed, I'll be happy to provide it to you.

Hello guys, as in title - I use custom NextDNS set of rules on DNS-over-HTTPS. As of today, Firefox can't connect to the provider. AFAIK Troubleshoot Mode is also affected. The other devices using NextDNS on my network work just fine and when I set the DNS to work system-wide as a kind of workaround, I don't get an issue. Same when I use other DNS-over-HTTPS options in the Firefox Preferences. Yesterday the problem didn't occur and I haven't performed any updates since yesterday - both Firefox and NetworkManager seem to be up to date. Additional info: OS: EndeavourOS (Arch Linux) Firefox version: 129.0.2 If any other info is needed, I'll be happy to provide it to you.
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Wšykne wótegrona (3)

jonzn4SUSE
jonzn4SUSE
  • Top 10 Contributor
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Just for S&Gs I made the entire switch to nextdns in my OS, browser, and router. The site works for me. see screenshots

jonzn4SUSE
jonzn4SUSE
  • Top 10 Contributor
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Also, from my location, doing a traceroute to nextdns is not pretty(30hops), but to cloudflare, it's just 11 hops. see screenshot What does it look like for you?

jonzn4SUSE
jonzn4SUSE
  • Top 10 Contributor
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Interesting read... https://help.nextdns.io/t/y4ytzj0/dns-routing-choosing-a-slower-and-much-further-dns-server-for-routing