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DNS (Domain Name System) allows an application to translate domain names into IP addresses. To reduce load on DNS servers and to speed up response time, Mozilla caches DNS results. This preference controls the maximum number of results to cache.

Possible values and their effects

The number of DNS results to cache. (Default: 20)


  • This preference does not exist by default.

First checked in

2001-06-06 by Gordon Sheridan

Has an effect in

  • Netscape (all versions since 6.1)
  • Mozilla Suite (all versions since 0.9.1)
  • Phoenix (all versions)
  • Firebird (all versions)
  • Firefox (all versions)
  • SeaMonkey (all versions)

Related preferences

Related bugs