Thunderbird Add-On: Import external API

I would like to write an add-on for Thunderbird that interacts with an API. For that I need to embed the external javascript (https://myapi.com/?key=123456789) which requires jQuery. I think I’ve traveled across the internet and can’t find any solution.

Have you any suggestions how to implement this both scripts (API and jQuery)?

I think there aren’t too many thunderbird devs on this forum. I know there are some here -

http://forums.mozillazine.org/viewforum.php?f=19

You might have better luck posting there. :slight_smile: