blair1q writes "Mozilla.org has added a new intermediate development state, Aurora, to its Firefox development chain. Coming between Nightly-Build and Beta, it adds a fourth sense to the meaning of 'the current version of Firefox' (the Release version fills out the trope). And now they have populated the Aurora channel with what will eventually become Firefox 5. The intent is to reduce release-version cycle times by allowing more live testing of new features before the integrated code gets into a Beta version. The inaugural Aurora drop includes 'performance, security and stability improvements.' Firefox 5 is scheduled to enter Beta on May 17, and Release on June 21. Downloads of all of the active channels are available from the Firefox channels webpage."