Firefox 3.0 Release Candidate 2 has been released by Mozilla
uploaded to the Mozilla FTP site.
FTP location here. [UPDATED: Link removed.]
As yet no official release notes have been made available and the links are not yet on the download site, but rest assured, this is the real thing.
The final release is getting close.
More later ...
[UPDATE: OK, the release is now official.
I'll take this one for a spin tomorrow, although I don't expect much to change from RC1.]