Arch Linux

iphitus

Forum Fellow

From: Melbourne, Australia

Registered: 2004-10-09

Posts: 4,927

Firefox and DNS

Is it me... or are DNS lookups in firefox synchronous... that is, the whole browser waits until the lookup is done?

I noticed it recently as my wireless card has been dying and I occasionally get shocking latency. I'll open a new page, and the whole browser freezes for the lookups, then continues as normal. It's a pain when you still want to look at something in another tab, or worse, the connection drops, the lookup hangs, and firefox hangs.

Anyone know?

underpenguin

Member

Registered: 2007-02-01

Posts: 116

Re: Firefox and DNS

It sure seems like it, firefox is loading multiple pages painfully slowly.
*posting using opera*

briest

Member

From: Katowice, PL

Registered: 2006-05-04

Posts: 468

Re: Firefox and DNS

Try setting network.dns.disableIPv6 in about:config to true, unless you actually use IPv6, may help.

Last edited by briest (2008-06-10 12:18:20)

abhidg

Member

From: City of Kol

Registered: 2006-07-01

Posts: 184

Website

Re: Firefox and DNS

Doesn't happen here using firefox 3 rc2.
network.dns.disableIPv6 is false here.

Shadowmeph

Member

From: West Coast Canada

Registered: 2008-05-19

Posts: 208

Re: Firefox and DNS

the other day that was happening to me I thought that it was something that I did so I installed opera ( which usually hates me) and I had know problems at all so I think that FF is being finicky

xaw

Member

From: Chapel Hill

Registered: 2007-08-09

Posts: 177

Re: Firefox and DNS

So far so good I haven't been seeing this problem, and I also have network.dns.disableIPv6 set to disable by default (it came that way when I built firefox3 from nightly)

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pheon

Member

From: Berlin, Germany

Registered: 2008-05-14

Posts: 91

Re: Firefox and DNS

Hello,
I've noticed this behavior while using (slow) proxies (e.g. at work).
One way getting around this could be increasing the dns-cache-expiration-time of firefox (at least for pages you browse often).
Set Network.dnsCacheExpiration to 3600
and Network.dnsCacheEntries to 1000

Altough google becomes notably slower.

Hope this helps.

Regards

Last edited by pheon (2008-06-10 18:52:25)

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Zepp

Member

From: Ontario, Canada

Registered: 2006-03-25

Posts: 334

Website

Re: Firefox and DNS

Never had that happen in firefox 2 or 3. I am not using the arch linux package though, so I have no idea if it is an arch bug or something.

Last edited by Zepp (2008-06-11 16:00:37)

neotuli

Lazy Developer

From: San Francisco, CA

Registered: 2004-07-06

Posts: 1,201

Website

Re: Firefox and DNS

I noticed this at school where the network DNS servers are slow as molasses. I solved it by using openDNS to speed up the lookups.

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