Unfortunately it's a pretty bad experience on Android thanks to https://bugzilla.mozilla.org/show_bug.cgi?id=806385 (for example YouTube links won't open the native app)
I use an app for reddit, an app for hacker news, an app for YouTube, etc. If I stumble upon a URL of one of those sites I always want it to open in the app, since the UX is so much better there.