Enable extension for 'user' only

debian/fw-daemon-gnome.postinst

@@ -4,8 +4,7 @@ set -e
 
 case $1 in
 	configure)
-		pkill -HUP gnome-shell
-		gnome-shell-extension-tool --enable-extension=firewall@subgraph.com
+		su user -c gnome-extension-tool --enable-extension=firewall@subgraph.com 
 	;;
 	abort-upgrade|abort-remove|abort-deconfigure)
 	;;

debian/fw-daemon-gnome.prerm

@@ -3,7 +3,7 @@
 set -e
 
 if [ "$1" = "remove" ]; then
-	gnome-shell-extension-tool --disable-extension=firewall@subgraph.com
+	su user -c gnome-shell-extension-tool --disable-extension=firewall@subgraph.com
 fi
 
 #DEBHELPER#