Missing icons in 2.21.8

[Bernd Eggink <monoped sudrala de>]

Hi all,

after an update from 2.21.7 to 2.21.8 I get these messages when starting 
Firefox:

----------------------------------------------------------------------
(firefox-bin:4965): Gtk-WARNING **: Error loading theme icon 
'gtk-go-back-ltr' for stock: Icon 'gtk-go-back-ltr' not present in theme

(firefox-bin:4965): GLib-GObject-CRITICAL **: g_object_unref: assertion 
`G_IS_OBJECT (object)' failed

(firefox-bin:4965): Gtk-CRITICAL **: gtk_default_render_icon: assertion 
`base_pixbuf != NULL' failed

(firefox-bin:4965): Gtk-CRITICAL **: IA__gtk_style_render_icon: 
assertion `pixbuf != NULL' failed

(firefox-bin:4965): GLib-GObject-CRITICAL **: g_object_ref: assertion 
`G_IS_OBJECT (object)' failed
----------------------------------------------------------------------

And similar for 'gtk-go-forward-ltr'.

Is it a bug or am I missing something?

Regards,
Bernd

--
Bernd Eggink
http://sudrala.de