Bug#639837: UI hangs for 30s while loading pages

[Ulrich Eckhardt]

On Wednesday 31 August 2011 08:18:02 Mike Hommey wrote:
> Another thing I can think of that could explain your symptoms is if you
> have ipv6 enabled, but ipv6 doesn't actually work. I'd suggest you try
> to disable ipv6 (about:config, network.dns.disableIPv6) and see how it
> goes from there.

Tried that, no change. Maybe a tiny bit less often, but still regularly 
present.

In any case, it would not explain why the UI freezes (I'd hope that Iceweasel 
doesn't do blocking networking requests in the UI loop) or the presence of 
mentioned error messages about FD abuse in the logfile.

Uli