FC12-- Temporarily turning off IPv6 in Firefox and Thunderbird

[Tom H]

> I am at the IEEE 802 Emergency Services Study Group meeting and IPv6 is
> configured on their wireless and not working, so to sites like IETF and
> my home, I am getting long time outs until Firefox and Thunderbird give
> up and then try IPv4.
> How do I change things that for this week, I skip the IPv6 attempt?

To disable ipv6 in Firefox, go to about:config then change
network.dns.disableIPv6