It was 100% painful and frustrating, but also 100% done for technically valid reasons. I've always preferred Firefox (or Opera Presto, before that) for the simp

It was 100% painful and frustrating, but also 100% done for technically valid reasons. I've always preferred Firefox (or Opera Presto, before that) for the simple reason that Chromium's text selection is weird, clunky, and unlike anything else I've ever seen (this is also how you can spot any Electron app). But it really was just ... slow. Moving away from XUL was an important step in fixing that. That said, I do feel that Firefox fell in the "X is more popular, X does Y, therefore, we need to do Y" trap, forgetting that you have your current userbase exactly because you're NOT doing Y but Z. But that's an entirely different matter.