It's likely that it already had that default association set up out of the box. If you open up the system App Info screen for YouTube, you should see a section that says "Set as default", and when you open that, it shows you which URLs it hijacks under "Supported web addresses", but in that same screen there should be a "Go to supported URLs" option, where you can choose "In this app", "Ask every time", or "In other app".I am running Android 10 so it's possible it looks different on Android 6.
blotter_paper|6 years ago