- cross-posted to:
- technology@beehaw.org
- cross-posted to:
- technology@beehaw.org
Textual words from them:
It’s our first step towards a more modern, more beautiful, and more customizable Thunderbird experience. We think you’re going to love it, and we are endlessly grateful for all of your support throughout the years 💙
From what I’ve read, it is not, but it basically contains Firefox to do the rendering.