I think generally it's a mobile layout issue. On Firefox for Android, scrolling the page still triggers a click/mouseup/focus event I guess - when you let go of your finger, it toggles the state of the "Note" -> "Pack" section, so it tends to hide itself as you're reading it!

Would just remove that "accordion" functionality completely or make it always expanded on mobile breakpoints or whatever. Or just move that entire "About pack" section to be on the main page "below the fold" as the first thing people are going to want to do is find out *what it is* :)