▽mozilla.org news ●06/23 19:59 Thunderbird 2 Release Candidate 1, the preview release of the next version of the Thunderbird email client, is now available for download. Our testing community and users who want to get a sneak peek at the next version of Thunderbird should download and install this release candidate. The release notes have a detailed list of what’s new in Thunderbird 2 RC 1. SeaMonkey 1.0 launched!