Mozilla Firefox 1.0 Roadmap: "New Releases

Additional required work has necessitated the insertion of a new release for Windows, Linux and MacOS X (0.10 - called '1.0 Preview Release') and extra for MacOS X (0.11 - coincides with '1.0 Final'). The decision has been made to hold the 1.0 release on MacOS X until after 0.11 has been completed, basically ensuring that we do not ship a product that is not up to spec for that platform."