Firebug skin is white, it’s annoying and it hurts my eyes.

Solution:

I edited myself a bunch of css files and build up a less annoying version, although there’s a lots of borders that still too light, it’s a real relief for me already.

You can download it here.

You should replace the files on the classic skin, they are located inside the document settings/your user/data something/mozilla/extensions/firebug/skin/

Having a fixed background may be a problem on firefox if you just declare it like this:

body { background:url(file.ext) fixed; }

Solution:

body { background:url(file.ext) fixed #color; }

when running firefox on fedora 9+ you get this errors:

(firefox:30077): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion `G_IS_OBJECT (object)’ failed

(firefox:30077): GLib-GObject-CRITICAL **: g_object_set_qdata: assertion `G_IS_OBJECT (object)’ failed

(firefox:30077): Pango-CRITICAL **: pango_font_find_shaper: assertion `font != NULL’ failed

(firefox:30077): Pango-WARNING **: failed to find shape engine, expect ugly output. engine-type=’PangoRenderFc’, script=’latin’

(firefox:30077): GLib-GObject-CRITICAL **: g_object_get_qdata: assertion `G_IS_OBJECT (object)’ failed

(firefox:30077): Pango-CRITICAL **: pango_font_describe: assertion `font != NULL’ failed
/usr/lib/firefox-3.0.8/run-mozilla.sh: line 131: 30077 Segmentation fault

and it simply won’t start. For others, like seamonkey, it simply shows “Segmentation Fault”.

Solution:

yum install xorg-x11-font*