“So how come the original open source web browser is now, Statcounter estimates, under 3 percent? Mozilla, it seems to us, has missed a lot of opportunities, and continues to do so.”
Chrome alone holds about 64 percent, and Chromium engines run close to three quarters of all browsers. Mozilla invented Rust, then laid off the team six months into the pandemic and killed Servo with it. Its most loyal users run Linux and want power features, and Firefox keeps stripping them out to look like Chrome. Nobody switches to a copy.