Default interface font size in Firefox & Thunderbird 2.0

[Erin E Conn]

As can be seen in my screenshot: 
http://img.photobucket.com/albums/v709/TKou/screenshots/mozfonts.jpg, 
since upgrading to the 2.0 versions of Firefox and now Thunderbird the 
interface font sizes for those applications have become much larger than 
any of my other gtk applications, and they seem to be ignoring my font 
settings in .gtkrc-2.0. What's causing that and how can I fix it, 
because it looks awful.

contents of .gtkrc-2.0:
# -- THEME AUTO-WRITTEN DO NOT EDIT
include "/usr/local/share/themes/Bluecurve/gtk-2.0/gtkrc"

style "user-font" {
         font_name = "Arial 12"
}

widget_class "*" style "user-font"

gtk-font-name="Arial 12"

include "/home/erin/.gtkrc.mine"

# -- THEME AUTO-WRITTEN DO NOT EDIT

-- 
===============
  Erin E Conn
  econn at acm.org
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