NativeSelect in subwindow not working in latest Firefox

It seems that the NativeSelect component, when attached into subwindow, is not working correctly in latest Firefox (3.5.7).
Component displays properly, but it’s impossible to change the value. FF displays the list of values correctly, but when you click an item, no event is fired and the component becomes “locked”. In Chrome / IE / earlier versions of FF this works fine.

This seems to be fixed in the new release (3.6.0) of Firefox.