Created attachment 3496 Proposed patch Hi, libindicator 0.3.19, in Xubuntu natty. Some applications, which have indicator's support through indicator-application, do not show in the panel. I'm not sure why, but they probably do something differently… I compared with other implementations (gnome, lxde), and it seems xfce4-indicator-plugin is missing some handlers for the entry_added/entry_changed signals. The attached patch fixes the missing apps' issue here. Thanks!