diff --git a/config/herbstluftwm/autostart b/config/herbstluftwm/autostart
index 41a48d5..843d7c4 100755
--- a/config/herbstluftwm/autostart
+++ b/config/herbstluftwm/autostart
@@ -175,6 +175,7 @@ hc rule class~'(.*[Rr]xvt.*|.*[Tt]erm|Konsole)' focus=on
 hc rule class='Pinentry' manage=off focus=on
 # let chromium fullscreen in its pane instead of the screen
 hc rule --instance=chromium --ewmhrequests=off
+hc rule --instance=firefox --ewmhrequests=off
 hc rule windowtype~'_NET_WM_WINDOW_TYPE_(DIALOG|UTILITY|SPLASH)' pseudotile=on
 hc rule windowtype='_NET_WM_WINDOW_TYPE_DIALOG' focus=on
 hc rule windowtype~'_NET_WM_WINDOW_TYPE_(NOTIFICATION|DOCK|DESKTOP)' manage=off