Firefox bug

1. Chenge focus from firefox window to another window. Firefox window need to be accessible by mouse 2. Click with mouse pointer to the yellow square 3. Firefox handle's it as double click

by Andrii Telesh

HTML

<div style="width: 300px; height: 300px; background: #FC0" onclick="this.innerHTML='click'" ondblclick="this.innerHTML='double click'"></div>