Mozilla Thunderbird 2 Beta 2 is now available. Features new to Thunderbird 2 include message tags, folder views, session navigation history, a visual refresh of the theme, and improved new mail notification alerts.
Mozilla Thunderbird 2 Beta 2 includes a theme update for Mac OS X, improved message preview text in new mail alerts, easy account setup for gmail and .Mac accounts, and many bug fixes based on Beta 1 feedback. It is available for Windows, Mac OS X, and Linux in over 30 languages. en-US beta 1 users will receive beta 2 via automatic software update.