I would say this is a Firefox bug, the ember component click event is not firing when it is firing on chrome (probably related to the fact that this specific part of the component is replaced by raw html). I will find a workaround.
edit: yes probably this, it’s often firing on first hit when existing tag, subsequent render are killing the event.
edit2: tried on firefox nightly (63) still having the same behaviour, definitely have to find a workaround…