I've used Thunderbird for some time. Occasionally I have questions but don't know where to go to ask. Now that I'm "here" I have an additional question to my original ones. I don't keep up with techie news as much as I used to. Why is it now Thunderbird/Firefox instead of Thunderbird/Mozilla?

Alas, does Thunderbird have a sub on reddit - or a "help line" on any other social media or is this forum pretty much "it" for support and questions?