New ask Hacker News story: Ask HN: Why new browsers use Chromium instead of Firefox as their base?

Ask HN: Why new browsers use Chromium instead of Firefox as their base?
22 by josemando | 15 comments on Hacker News.
Every time there is a post here related to Firefox, I see a lot of people complaining about the state of browsers and the utterly dominance of Chrome and Chromium based browsers. I’m wondering if that are technical reasons why the newish browsers (such as Brave or Edge) are choosing Chromium instead of Firefox as their starting point. If so, shouldn’t this be a priority for Mozilla to change that?