title: Get a deactivated scrollbar in Firefox
body: <p>I have a Javascript tabbed dialog whose pages have different heights. Some of them are taller than the browser window.</p>
  
  <p>In Internet Explorer, there is always a scrollbar to the right. When it is not needed, it is greyed out. The page dimensions stay the same and there is no problem.</p>
  
  <p>In Firefox, the Scrollbar is hidden completely when not needed constantly changing the page's dimensions on each page change and thus the width of the whole tabbed dialog (it has a relative width). This is very annoying.</p>
  
  <p>Is there any way to bring the deactivated scrollbar "back" to Firefox, or any other way to work around this?</p>