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From: Mike Clarke <jmc-freebsd2@milibyte.co.uk>
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Date: Thu, 01 Sep 2016 21:28:22 +0100
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On Thursday 01 Sep 2016 22:12:57 Ralf Mardorf via freebsd-questions wrote:
> Did you try
> 
>   about:config
> 
>   network.dns.disableIPv6 true
> 
> ?

Thanks for the suggestion. I've just tried it now but still no joy.

-- 
Mike Clarke