Created attachment 2746 A patch to fix this * add the Version (1.0) property * remove the deprecated Encoding property as all .desktop files are expected to be UTF-8 now According to http://live.gnome.org/GnomeGoals/ApplicationCategory * remove the Application category According to http://standards.freedesktop.org/menu-spec/menu-spec-latest.html#category-registry * add thunar to the FileTools category. * add the bulk renamer to the FileTools category rather than to the Filesystem one. * remove the bulk renamer from the Core and System categories.
Apparently this has been fixed in thunar 1.2.x, thanks! (though, I don't know if your patch was used or if it was fixed during a "routine" cleanup)