Is this http://awesomescreenshot.com/00f2i1es53 http://awesomescreenshot.com/00f2i1es53 a bug? The "t" doesn't have same bottomlime. Screenshot was taken on fir

Is this http://awesomescreenshot.com/00f2i1es53 http://awesomescreenshot.com/00f2i1es53 a bug? The "t" doesn't have same bottomlime. Screenshot was taken on firefox. It's pretty jarring imho.