AFAIK it use Win Font. Could be Segoe UI. (check Verdana and Tahoma also)
Edited on Jun 23, 2011 at 18:54 by SashiX
SashiX i think you're talking about the fonts used by default inside webpages, not for the UI.
Man, just put pic of that font, not the whole window.
It's Segoe UI, like SashiX said. The Firefox browser uses the same default typeface as the Windows Vista Theme.
All times are CET. The time is now 01:28