configuring firefox/thunderbird fonts?

[Kristian Rink]

Folks;

dealing with both GNOME and XFCE, I recently used to have an issue
regarding system font size in firefox/thunderbird in GNOME, which, then
again, "suddenly just disappeared" (have no clue how...). However, I
don't want to use GNOME everyday, prefer XFCE but it's not really
enjoyable at the moment: Using Firefox and Thunderbird, I see that
generally my fonts there are, way larger than those in every other GTK /
XFCE application. So far, I haven't yet found a reliable, permanent way
of fixing this, even my userChrome.css seems to be completely ignored...
Errm... Help / hints / ideas, anyone? :/

Thanks in advance and bye,
Kristian

-- 
Kristian Rink * http://zimmer428.net * http://flickr.com/photos/z428/
jab: kawazu at jabber.ccc.de * icq: 48874445 * fon: ++49 176 2447 2771
"One dreaming alone, it will be only a dream; many dreaming together
is the beginning of a new reality." (Hundertwasser)