Hello all, There has been much discussion as to where add-on developer conversations should be happening. After much consideration I have decided that it should have its own list that is clearly dedicated to the topic and is Thunderbird-owned. The new location is the "Add-ons Developer" list on our Topicbox <https://thunderbird.topicbox.com/groups/addons>. If you are an Add-on Developer, interested in Add-on development, or just want to follow the conversations around add-ons - please head over there and sign up for the list. As part of this, I will be sunsetting the dev-apps-thunderbird group. Not right away, but in the next few months as we replace any mention of the group in our documentation with the new list. Feel free to ping me with questions and concerns. -- Ryan Sipes Community and Business Development Manager Thunderbird <https://thunderbird.net>