Add-ons This category is for discussing Thunderbird add-ons/extensions. This is a good place to discuss add-on development, ask questions about creating add-ons, and help others create new extensions. Beta This category is used to describe and discuss Thunderbird Beta releases. Please only use this category to discuss Beta releases, if it does not deal with Beta releases - don’t use this category!
Useful Thunderbird Links [Thunderbird] (11)

Putting this here for folks just getting started with Thunderbird. Here are my most useful Thunderbird links that help me contribute every day. Useful Thunderbird Links: MDN Thunderbird Documentation - Tutorials on how …

About the Thunderbird category [Thunderbird] (1)
How to add button to status-bar in Thunderbird [Add-ons] (3)
Installing dictionary file in profile/extensions folder does not work on v66 [Beta] (1)
Will mozilla make thunderbird for android? [Thunderbird] (1)
Error messages [Beta] (1)
Will deleting 'submission incomplete' addon prevent me reusing addon name? [Add-ons] (1)
WHY the Thunderbird VS gmail-Google Security process CONFLICT? [Thunderbird] (3)
Telemetry can't be disabled [Beta] (8)
Italian dictionary doesn't appear in spelling checklist [Add-ons] (4)
Previously open tabs show wrong emails [Beta] (1)
Thunderbird Extensions. How do I set message composer body? [Add-ons] (1)
Mozilla Lightning [Thunderbird] (1)
Default to BCC when forwarding to a mailgroup [Add-ons] (4)
Thunderbird Council Elections 2019 - Preliminary Electoral Roll [Thunderbird] (1)
Need how-to for signature creation [Add-ons] (1)
Show a button only when mail comes from specific sender [Add-ons] (2)
Addon Thunderbird 65 and 60 disappeared from [Thunderbird] (6)
Postbox is Hiring Mozilla Developers [Thunderbird] (1)
Thunderbird Beta on Windows 10.0.10586 [Beta] (12)
Autocomplete drastically slower in Thunderbird 64b4 vs 60 [Beta] (3)
Thunderbird "Not responding" and freezes [Beta] (9)
Request for copy folder [Thunderbird] (3)
Thunderbird add-on stuck on Mozilla site missing on Thunderbird site [Add-ons] (1)
Email drag and drop [Beta] (1)
Create plugin for thunderbird to save attachments into a folder automatically created [Add-ons] (12)
Re: Clippings lost [Thunderbird] (7)
Decode mailboxes with pipe character [Thunderbird] (4)
Legacy overlay addon migration - missing groupbox labels in prefs window [Add-ons] (2)
Thunderbird 65 and Languages [Beta] (6)