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When a page is loaded, it can be cached so it doesn't need to be downloaded to be redisplayed. This preference controls whether to cache files retrieved by HTTP or HTTPS either in memory or on disk.

Possible values and their effects


Cache HTTP and HTTPS files. (Default)


Don't cache HTTP or HTTPS files.

First checked in

2001-10-01 by Darin Fisher

Has an effect in

  • Netscape (all versions since 7.0)
  • Mozilla Suite (all versions since 0.9.6)
  • Phoenix (all versions)
  • Firebird (all versions)
  • Firefox (all versions)
  • Thunderbird (all versions)
  • Minimo (all versions)
  • SeaMonkey (all versions)

Related bugs

Related preferences