Yesterday, New firefox 4RC1 beta are available for download.Development on Firefox 4 has not slowed down and strong progress is being made daily.
However, based on the delays in completing the “feature complete” Beta 7 milestone against which our Add-on developers and third-party software developers can develop, as well as considering the amount of work remaining to prepare Firefox 4 for final release, we have revised our beta and release candidate schedule
A lot of bug fixes were done and the final stable versions of plug-in are up for the release. This RC build is currently available for download from the release FTP server and is also available from Firefox Beta website.
Click here to download Firefox 4 beta RC via FTP and to download from HTTP location clickhere.