An anonymous reader writes: A company-wide memo distributed throughout the Mozilla Foundation by chairperson Mitchell Baker argues that the organization should disentangle itself from the Thunderbird email client in order to focus on Firefox. She said, "Today Thunderbird developers spend much of their time responding to changes made in core Mozilla systems and technologies. At the same time, build, Firefox, and platform engineers continue to pay a tax to support Thunderbird." Both projects are wasting time helping each other, and those demands are only going to get worse. She says many within Mozilla want to see it support community-managed projects without doing the bulk of the work on it, and perhaps Thunderbird could be one of those projects. Baker stresses that no decisions have been made yet — they're starting the conversation early to keep the community involved in what happens to Thunderbird.