Hello. I've a problem while connecting to some sites - for example I can get "Server not found" when accessing "google.com". And no problems with "ipv6.google.com". My connection is mixed with IPv4+IPv6 (named Dual Stack PPPoE). Did the tests with https://test-ipv6.com/index.html.en_US and get warning: "Your browser has real working IPv6 address - but is avoiding using it. We're concerned about this." Checked chromium based browsers - no such warning and sites working with IPv6 and IPv4. Using latest Firefox 66b4. I think it need to be fixed. Best regards.