In this Ars Technica article, Mozilla Corporation Chair Mitchell Baker discloses the desire to drop the Thunderbird email client altogether.
"Many inside of Mozilla, including an overwhelming majority of our leadership, feel the need to be laser-focused on activities like Firefox that can have an industry-wide impact." Baker writes. "With all due respect to Thunderbird and the Thunderbird community, we have been clear for years that we do not view Thunderbird as having this sort of potential."
Thunderbird has already been demoted to second-tier status, receiving only security updates since the summer of 2012. Baker's plan would turn Thunderbird over to a community product, similar to what happened with the Mozilla Suite a decade ago.
Is Mozilla's decision to laser-focus on improving Firefox going to stop their dwindling market share? Who else, besides the submitter, is still using Thunderbird? And where will you go once Thunderbird is no longer supported?
(Score: 2) by Pav on Thursday December 03 2015, @12:26AM
SOGo [www.sogo.nu] is a natively compatible Exchange replacement, and Thunderbird is the Open Source client-side part of the stack, with a Thunderbird-like web UI, and (importantly) native Outlook compatibility. Don't take my word for it... there are packages for Debian, Ubuntu, Redhat and SUSE, and also a pre-spun distro on the site for easy testing (called "ZEG" - Zero Effort Groupware).
This effectively kills off the only real Exchange replacement out there.