Email client follows Firefox onto two week release treadmill Thunderbird is moving to fortnightly releases to keep pace with Firefox accelerated schedule. Mozilla and its subsidiary MZLA updated their flagship apps this week, releasing Firefox 154 and Thunderbird 154 , respectively. Since last month version 153 releases are the latest Extended Support Releases, users who prefer a slower pace can remain on them for the next year. ESR is Mozilla term for what Canonical calls LTS, Long Term...
