download from ftp://ftp.mozilla.org/pub/firefox/releases/3.0rc2/mac/ if you are using RC1 already, and can wait, you should be able to update to RC2 shortly (probably tomorrow when its officially out), automatically if its enabled, or manually "check for update". Warning, This is NOT firefox 3 final This could be firefox 3 final if no further blocking bugs were to be found. There should be no major feature changes since RC1, only ~20 bug fixes (might be important related to stability). Good luck and enjoy. Check my sig for a brief introduction of Firefox 3.