To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseReview for X-Unsent support by ALEO
Rated 5 out of 5 stars
Very nice tools.
Please update for last release of thunderbird :)
I just released a new version 4.0.0 that should work in TB 78. It is currently still in review here on ATN, but you can already get it from https://github.com/lieser/X-Unsent_support/releases.
To create your own collections, you must have a Mozilla Add-ons account.