Firewalld icon missing in trisQuel 10 panel ..

I always used to control network acces via the firewalld control icon near the time panel, right lower corner of the screen in older versions of TrisQuel...

but here in TrisQuel 10 mate, there is no firewalld icon, so i can't control the network acces in/out aka block the acces to the net..

i think i tried every thing..: adding different panels.. status fields..

do anybody have a tip to bring the firewalld icon down to the panel.. ?

8O)