title: xul:panel position on multiple monitors
body: <p>I have a xul:panel on my firefox extension. I give the position to display acording to screen.width and screen.height. My problem appears when I have multiple monitors and I start the browser on the first monitor, it appears on the second one and the xul:panel is drawn according to the first screen's resolution on the second one. Is there a solution to draw according to the second screen's resolution?</p>