I got this hint fro "Developer" in the Arch forum. "The charpicker applet no longer uses bonobo and I think that xfce can't handle gnome-panel-3 dbus-based applets"
Upgrade of gnome-applet was from 2.30.0 to 2.32.0
Mass-reassign all bugs from florian@ to goodies-dev@, thanks for the maintenance work! (and sorry for the bugmail spam..)
Closing all xfce4-xfapplet-plugin (archived/deprecated/unmaintained project).