Confirmed since I'm also seeing this (in my case on firefox 3.6.8+build1+nobinonly-0ubuntu2 - and a lot of other programmes).
Note I do not have appmenu-gtk installed - it was installed but I apt-get removed it.
Ah - I think I might see what's happening here.
1) Installing appmenu-gtk adds /etc/X11/Xsession.d/80appmenu
2) This sets the environment variable UBUNTU_MENUPROXY to libappmenu.so
3) If you remove appmenu-gtk the variable is still set - and you get these errors
4) apt-get remove on appmenu-gtk leaves behind the /etc/X11/Xsession.d/80appmenu causing these errors to persist.
Confirmed since I'm also seeing this (in my case on firefox 3.6.8+build1+ nobinonly- 0ubuntu2 - and a lot of other programmes).
Note I do not have appmenu-gtk installed - it was installed but I apt-get removed it.
Ah - I think I might see what's happening here. Xsession. d/80appmenu Xsession. d/80appmenu causing these errors to persist.
1) Installing appmenu-gtk adds /etc/X11/
2) This sets the environment variable UBUNTU_MENUPROXY to libappmenu.so
3) If you remove appmenu-gtk the variable is still set - and you get these errors
4) apt-get remove on appmenu-gtk leaves behind the /etc/X11/
Dave