An extension for Thunderbird 3.0+ that allows you to view threads as "real" conversations, including your own emails. This extension also adds a bunch of useful UI features in the conversation view…
The official windows installer (built using NSIS) for OCaml
A set of hopefully useful modules that you can import in your Thunderbird extension. Wrappers for deleting messages, archiving messages, sending messages, wrapping text, quoting text...
The language of the future!
Replace the compose window in Thunderbird with a tab that uses CKEditor.
An extension for Thunderbird 3.0+ that allows you to sort folders in the folder pane.