art-common/Makefile.am

 SUBDIRS = \
 		gdm-theme \
-		mate      \
-		xfce
+		mate

art-common/mate/debian-edu.layout

@@ -40,7 +40,7 @@ locked=true
 
 [Object web-browser]
 object-type=launcher
-launcher-location=/usr/share/applications/x-www-browser.desktop
+launcher-location=/usr/share/applications/firefox-esr.desktop
 toplevel-id=bottom
 position=50
 locked=true

art-common/xfce/55xfce4-session-debian-edu

-case "$BASESTARTUP" in
-  xfce4-session|startxfce4)
-    if [ -z "$XFCE_PANEL_MIGRATE_DEFAULT" ]; then
-      XFCE_PANEL_MIGRATE_DEFAULT=1
-      export XFCE_PANEL_MIGRATE_DEFAULT
-    fi
-    ;;
-esac

art-common/xfce/Makefile.am

-install-data-local:
-	$(mkinstalldirs) $(DESTDIR)$(sysconfdir)/X11/Xsession.d
-	$(INSTALL_DATA) 55xfce4-session-debian-edu \
-		$(DESTDIR)$(sysconfdir)/X11/Xsession.d/55xfce4-session-debian-edu

configure.ac

@@ -28,7 +28,6 @@ Makefile
 art-common/Makefile
 art-common/mate/Makefile
 art-common/gdm-theme/Makefile
-art-common/xfce/Makefile
 art-lines/Makefile
 art-lines/g-i/Makefile
 art-lines/gnome-shell/Makefile

debian/changelog

+debian-edu-artwork (2.10.1.0.3-1) UNRELEASED; urgency=medium
+
+  * art-common/mate/debian-edu.layout:
+    - Use firefox-esr.desktop instead of (non exsting) x-www-browser.desktop.
+  * Drop Xfce first-start configuration (moved to d-e-c).
+
+ -- Wolfgang Schweer <wschweer@arcor.de>  Thu, 29 Nov 2018 15:28:13 +0100
+
 debian-edu-artwork (2.10.1.0.2-1) unstable; urgency=medium
 
   [ Wolfgang Schweer ]

debian/debian-edu-artwork.install

-etc/X11/Xsession.d/55xfce4-session-debian-edu
 usr/share/gdm/dconf/
 usr/share/glib-2.0/
 usr/share/mate-panel/