No, this is not a bug in the XFCE menu system, rather a missing Depends/Recommends: ubuntu-docs on the package that installs about- ubuntu.desktop.
** Package changed: xubuntu-default-settings (Ubuntu) => gnome-panel (Ubuntu) -- [Xubuntu] yelp can not find ghelp:about-ubuntu https://bugs.launchpad.net/bugs/253416 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-panel in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs