Speed up Firefox when using Development Server

June 18, 2008 at 1:17 PMAndre Loker

The problem

Using Firefox on Vista to view websites hosted by the Visual Studio Development Server can be unbearably slow. Pages take aeons (i.e. several seconds) to load while viewing the same site under IE does not suffer from this issue.

The solution

As mentioned in this blog post, this problem can be solved like this:

  1. Open the Firefox config (browse to about:config)
  2. Locate the setting: network.dns.disableIPv6 (type "v6" into the filter field)
  3. Change the value to true (double click the row)

The result

Now sites on the built in development server work fast even under Firefox and Vista.

The conclusion

What can I say - it works :-)

Update 06/19/2008: works with Firefox 3 as well

Posted in: ASP.NET

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Comments (9) -

Chris Pietschmann
United States Chris Pietschmann says:

Thanks for posting this. I've been wondering if there was a way to speed up Firefox while developing.

United Kingdom Shannon says:

Yea, I found this recently, amazing how much faster it is.  (one of the main reasons I was using local IIS with no debug while building apps).


Terrific! I have wondered why it takes forever in firefox and now i know. I am sure a lot of people will find this post useful.

Thanks again

It's just amazing Laughing

Tanks for a such useful hint.

Yes, very important. I found it elsewhere too but we need to get the word out Smile

Thnx a lot! It was frustratingly slow before and I couldn't figure out why until I found your post.

Greetz M*

Ynice guide.. you can speed firefox up by fiddling with the about:config pipelining settings.. the results are quite suprising.. www.nettechguide.com/how-to-speed-up-firefox-page-loading-times for more info.

Wonderful from 4.8s to 0.8 for page with 4 requests. Thanks a lot.


Thanks for that
If this will help speedup my dev' work, then I'm in ;)

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