Network.dns.disablePrefetch

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The title given to this article is incorrect due to technical limitations. The correct title is network.dns.disablePrefetch.

This article describes the preference network.dns.disablePrefetch. To add, delete, or modify this preference, you will need to edit your configuration — do not edit this article.

Background

DNS prefetching was implemented in Firefox 3.5 to improve page load time. This feature allows Firefox to perform domain name resolution proactively and in parallel for hyperlinks, images, CSS, JavaScript, and other webpage content. [1] [2] Note: To disable DNS prefetching using about:config you will need to add network.dns.disablePrefetch as a new boolean preference and set the value to true.

Possible values and their effects

True

Disable DNS prefetching

False

Perform DNS prefetching (Default)

First checked in

Nov 07 2008 by Patrick McManus

Has an effect in

  • Mozilla Firefox (nightly builds since 2008-11-07; 3.1b2 and above)

Related bugs

External links

Retrieved from "http://kb.mozillazine.org/index.php?title=Network.dns.disablePrefetch&oldid=41113"