&gt; You can install Firefox on Android, and it has proper integration.<p>You can (and I do, because it&#x27;s the only way to block ads without root on Android).<p>But that was literally the same claim that was made against Microsoft - while you could install alternative browsers, you couldn&#x27;t really uninstall IE. And as parts of IE were factored into separate components for reuse by other applications, the concern was that IE was being turned into part of the operating system.<p>(The difference is that Android&#x27;s market share, while still dominant, is still not as high as Windows&#x27;s was back in the 90s[0]. Ditto for iOS, which has a minority market share. But in terms of the software vs. OS components, it&#x27;s almost exactly the same.)<p>[0] or even as high as the Windows marketshare is today, for that matter.