36px with close button

[undrline]

Have set to display the close button. Only the current tab appears as 52px when faviconized. All the other faviconized tabs appear as 36px. Firefox versions 3.5.6 and 3.6. Expected behavior that favoiconized tabs would be 52px with a close button, and 36px without one.

screenshot: http://tinyurl.com/yaqj67g