The second Release Candidate of Firefox 3 was made available for developer testing and community feedback. If you are already running Firefox 3 RC1, then don’t expect to see any new features because RC2 is all about bug fixes and other under the hood performance tweaks.
Firefox 3 RC2 is available for Windows, Linux and Mac in over 45 languages. If you are already running Firefox 3 RC1, then go to Help > Check for Updates and upgrade to RC2, else just get it from here.
Hopefully, this is the last release candidate before the final release, which is expected to happen at some time later this month.

wrote, on June 6th, 2008
Today I have installed FF RC2. FF install correctly but said what most of my addons isn’t supported
I’m rollback to FF 2.0.0.14
wrote, on June 6th, 2008
Can’t wait for Firefox 3 to be released later this month. This should be 99% of the final release version. Remember to sign up for the world record attempt for most software downloaded in one day on the official release date. Hope their servers are up to the task….heheheheh
wrote, on June 6th, 2008
Clearing out old glitches will make this version even better.
wrote, on June 6th, 2008
Apparently there are still problems with RC2. So I would not be surprised if they were to release the 3rd one as well.
wrote, on June 7th, 2008
I shall upgrade from 3RC1.
wrote, on June 7th, 2008
….runs off to get download going….
It’s always amused me, why do they call it candidate. Is it like an app going before the app interview panel? lol