What you are referring to are androids custom tabs. It’s an android feature where an app can request an “in-app” browser window from the systems default browser. The system also allows the app to specify some customizations like the color of the action bar and I think its possible to add some buttons as well.

Firefox supports this feature and many apps give you an option to turn it off, but it’s up to the app opening the links.

This is my ringtone: https://m.youtube.com/watch?v=Ljqe4Nj7nBA&pp=ygUKbG9zdCB3b29kcw%3D%3D

And this is my notification sound: https://github.com/mozilla-b2g/gaia/blob/master/shared/resources/media/notifications/notifier_dropplet.opus

Let’s turn github into Instagram. Every snippet of code has to be attached to a picture or video…