I have zero confidence left in Mozilla's leadership. In fact, here's a bold prediction: the Thunderbird team (operating under the wholly owned subsidiary known as MZLA) will be more profitable within 5 years than Mozilla Corporation. Yes, that same dying product Mozilla abandoned in 2012. The one the COMMUNITY kept alive and the one that is now thriving.
Eventually Mozilla will approach MZLA begging them to come back...
(Note that I'm saying this as someone no longer employed there.)
@killyourfm It's becoming difficult to separate my favorite web browser from the serial foot-shooter that develops it...