Review for TT DeepDark by Raffhell
Rated 5 out of 5 stars
Seems wonderful. Hope to see it on latest Thunderbird.
Thank you!
You can find here the TB68 compatible version: https://addons.thunderbird.net/En-US/thunderbird/addon/deepdark-for-thunderbird
Before installing it, please, read very carefully and entirely all the add-on's description.
To create your own collections, you must have a Mozilla Add-ons account.