The first developer milestone of the next release of Firefox after Firefox 3.6 – code named Namoroka Alpha 1 is now available for download. Namoroka is built on pre-release version of the Gecko 1.9.2 platform, which forms the core of rich internet applications such as Firefox.
Note: Please note that this release is intended for developers and testers only.
This version is still in alpha it is meant to be used for testing and development. They havn’t released this version officially, but there must be some features introduced.