I can resolve ipv6 addresses with both my router and isp's dns too (but cannot access ipv6 websites).
Disabling ipv6 in firefox (about:config, set network.dns.disableIPv6) fixes the issue (in firefox) for me (and pages load visibly faster with my isp's dns too, see Bug #313218).
I can resolve ipv6 addresses with both my router and isp's dns too (but cannot access ipv6 websites).
Disabling ipv6 in firefox (about:config, set network. dns.disableIPv6 ) fixes the issue (in firefox) for me (and pages load visibly faster with my isp's dns too, see Bug #313218).