Developer reply by Florent Tassy
Rated 5 out of 5 stars
works great for me - 115 no problem.
only the icon on the sidebar looks goofy next the the clean thunderbird UI - is it possible to change that?
Thank you very much for the super rating! For the icon, did you notice that there are 3 available icons (green, light, dark)? You can choose the one you prefer in the add-on preferences.
To create your own collections, you must have a Mozilla Add-ons account.