diff --git a/xdg-config-dir/herbstluftwm/autostart b/xdg-config-dir/herbstluftwm/autostart
index 08747fc..8d7e869 100755
--- a/xdg-config-dir/herbstluftwm/autostart
+++ b/xdg-config-dir/herbstluftwm/autostart
@@ -151,6 +151,7 @@ hc rule class=XTerm pseudotile=on
 hc rule class=Firefox pseudotile=on tag=3
 hc rule class=Firefox instance=Navigator fullscreen=on tag=3
 hc rule class="Tor Browser" pseudotile=on tag=3
+hc rule class="Tor Browser" instance=Navigator fullscreen=on tag=3
 hc rule class=SshAskpass pseudotile=on
 hc rule class=Snes9x-gtk pseudotile=on