https://www.zhihu.com/question/30496375 Paste the above url in firefox android, no matter the version. After page load, wait for several seconds, firefox will try to redirect to the following url which is invalid because I don't want to install zhihu native app on my phone. zhihu://question/30496375?utm_source=mobile_web_scheme Chrome does not have this issue, which means zhihu cannot force user install native app when viewed in chrome. However, firefox provided zhih.com the opportunity to force open articles in native app even though user don't want to install the native app.