diff --git a/chrome/Fx65_tabs_on_bottom.css b/chrome/Fx65_tabs_on_bottom.css
index c4d8301..3cfefdf 100644
--- a/chrome/Fx65_tabs_on_bottom.css
+++ b/chrome/Fx65_tabs_on_bottom.css
@@ -23,4 +23,6 @@
   padding-left: var(--window-drag-space-width,0px)
 }
 .titlebar-placeholder,
-#TabsToolbar .titlebar-spacer{ display: none; }
\ No newline at end of file
+#TabsToolbar .titlebar-spacer{ display: none; }
+/* Also hide the toolbox bottom border which isn't at bottom with this setup */
+#navigator-toolbox::after{ display: none !important; }
\ No newline at end of file