As FireFox 3 (FF3) is now available as first public beta version at http://www.mozilla.com/en-US/firefox/all-beta.html, 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:
- open about:config
- create new boolean value extensions.checkUpdateSecurity=false