Remove icons in gnome application menu

The menu entries are created from .desktop-files. There you can specify if the icon shall be only shown in Gnome, only in KDE or in both with e.g. a OnlyShowIn=KDE line.

To hide all KDE-apps, you might do as root

cd /usr/share/applications/kde4/
for i in *.desktop; do echo “OnlyShowIn=KDE” >> $i; done

To hide Gnome-Apps in KDE, echo “OnlyShowIn=GNOME” into the Gnome .desktop-files.

However, when an update to a package arrives, this could override this, so you might to have to repeat it, e.g. with a cron job. Make a backup of /usr/share/applications/kde4/ before doing this to be safe if something goes wrong.

For a list of all information which can be included in a .desktop-file, see http://standards.freedesktop.org/desktop-entry-spec/latest/ar01s05.html

This is a known issue. See here:

apps-menu: Exception: can't convert event.get_time() to an integer #7

A fix is to change line 77 of /usr/share/gnome-shell/extensions/apps-menu@gnome-shell-extensions.gcampax.github.com/extension.js

from:

this._app.open_new_window(event.get_time());

to:

this._app.open_new_window(-1);