Empty 'em is a simple Thunderbird extension that empties Junk and Trash folders from all configured servers. The extension provides a menu item (), a folder pane context menu item, and a toolbar button to do so.
Add-on preferences allow you to include/exclude Junk, Trash, none or both folders in emptying process. You can also choose to override delete confirmation for each folders.
To enable debugging, you can enable verbose console messages via preferences.
Manually going through all the Junk and Trash folders to empty them, is tedious.
That is what prompted me to write this extension. I hope someone out there finds it helpful too.
.xpi) files can also be found on the project page on GitHub. Feel free to fork!