#tb-support-crew - For management of Thunderbird support.#tb-addon-developers - For questions and discussion about Thunderbird add-on development.#thunderbird - For general questions and support.You can use the Element mobile or desktop clients if you don’t want to use a browser. UX List - List for discussion about Thunderbird’s User Experience.Support Crew - Private list for volunteers to discuss management of support.Planning List - Discuss plans, strategy, policy, governance improvements, meta issues promote open standards status, announcements organize work to move Thunderbird forward!.E2EE List - End-to-end Encryption using OpenPGP, OTR, and S/MIME.Enterprise List - For ADMINISTRATORS to discuss large scale deployment and configuration of Thunderbird.Developer List - For technical discussion about Thunderbird development.Daily List - For announcements and discussions about Thunderbird Daily.Beta List - For announcements and discussions about Thunderbird Beta.Add-on Developers List - For developers to get support in developing and creating add-ons.Announcements List - For public announcements.Here are the places and ways Thunderbird communicates. Regardless of your skillset, we’re sure there is something you can add to our community and project. We invite anyone to come and participate in the creation of Thunderbird. But the fun is not just for programmers! Thunderbird is created by a community of designers, translators, documentation writers and support people in addition to developers. Thunderbird is open source software, meaning that anyone can inspect, modify, enhance it, and share it. Thunderbird is created by an online community of volunteers. Everything you need to get involved with Thunderbird.

Mozilla thunderbird help forum