The ThunderBird add-on simplifies the extension developer's job, making it more convenient.
Downloading Extension Developer for ThunderBird ...
If the download does not start automatically, please click here.
Our system has scanned the download for viruses, and we suggest that you also check the files before installation. The version of Extension Developer for ThunderBird you are about to download is 0.3.0.20090902, and the download will be provided as is, with no modifications or changes made on our end.