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Previous to Firefox 0.9 and Mozilla Suite 1.7.5, the meaning of the current preference network.cookie.lifetimePolicy was stored in three preferences: network.cookie.lifetime.enabled, network.cookie.lifetime.behavior, and network.cookie.warnAboutCookies. This preference controls whether the deprecated preferences should be migrated to the current preference.

Possible values and their effects


The deprecated preferences have been migrated.


The deprecated preferences have not been migrated. Migrate them, then set this preference to true. (Default)


First checked in

2004-03-09 by Mike Connor

Has an effect in

  • Netscape (all versions since 7.2)
  • Mozilla Suite (all versions since 1.7)
  • Firefox (all versions since 0.9)
  • SeaMonkey (all versions)

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