firefox字体问题.已经修改了userChrome.css

LittlesnowLinux

原来firefox菜单的字体是很小的,修改了userChrom.css后,中文字体就变大了,但英文字体呢,也变宽了.但在页面上的字体却变小了.如图
我的userChrome.css文件如下:
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/*Make all the default font sizes 20 pt:*/

{
   font-size: 12pt !important;
   font-family:simsun !important;
}


/*Make menu items in particular 15 pt instead of the default size:*/

  menupopup > * {
    font-size: 12pt !important;
    font-family:simsun !important;
  }


* Give the Location (URL) Bar a fixed-width font
*
#urlbar {
     font-family: tahoma !important;
* }

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还有我的.gtkrc-2.0文件如下:
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include "/usr/share/themes/Default/gtk-2.0/gtkrc"

style "user-font"
{
font_name="SimSun 12"
}
widget_class "*" style "user-font"
gtk-font-name = "Tahoma, Simsun 14"
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