Firefox 3.6 pre-alpha has been on the Mozilla servers for some time going through early testing by the community.
Today, Mozilla removed the 'pre' from their next browser and the latest alpha now has a project name ....
Welcome to 'Namoroka'.
System requirements, release notes, new features, schedules and download links for Namoroka (Note: This is an ALPHA release and is intended for testers and developers) can now be found all on one page here.