Firefox tabs problem

Its long time im searching a solution to resolve a firefox tabs problem. :d:

I have a full screen flash site with Stage.scaleMode = “noScale”, the menu still on the bottom of the stage, also when resizing the browser.

The problem its with Firefox. When you open a second tab in the browser, the first tab, where is the flash site dont “resize” according the reduced height of the stage, but the menu go down the border, hided.

Maibe trasforming listener.onResize = function() in listener.onMouseMove = function() …(sure its a stupidity…)