In a post couple weeks ago, we did mention about the numbering change for the next Thunderbird release (Miramar) going from 3.3a to 5.0b. However, we have received several questions related to the whereabouts of Thunderbird 4. Simply put there will NOT be a Thunderbird 4.0 version. The reason for this is because Mozilla wants the Firefox, SeaMonkey and Thunderbird to be on the same development cycle which also includes the same version numbering. Currently Firefox is on version 4.0.*, so why not make Miramar Thunderbird 4.0? A couple reasons, Miramar is not ready for release yet (estimated release date…

Firefox 5 Desktop and Mobile are scheduled for release on Tuesday, June 21st. This will be the first Firefox version released under Mozilla’s new Rapid Release Process.