FireFox 3 extension security

As FireFox 3 (FF3) is now available as first public beta version at, many users will realize that their add-ons don’t work any longer.
One possible cause is that the extension is provided through “insecure” update sites, i.e. not using HTTPS as transport protocol. To enable FireFox 3 loading updates from such sites, follow these steps:

  1. open about:config
  2. create new boolean value extensions.checkUpdateSecurity=false
  3. restart

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