Not an Android user, but I can speculate about reasons. Most people don't install browsers. They barely know what a browser is. So they use the one pushed to t

Not an Android user, but I can speculate about reasons. Most people don't install browsers. They barely know what a browser is. So they use the one pushed to them, or the one familiar with. In the case of Android, I believe Google Chrome is typically shipped as the default browser. And as it works fine, there's no incentive to install anything else. I doubt young/new internet users would even know about Firefox. If not set as default browser already, Google pushes it from widely popular services like Youtube. Bottom line, Google can reach billions of people, Mozilla none. Please remember this: people do NOT chose browsers, compare them, pick their favorite. They do none of these things. It's a collective illusion by us tech folks.