diff --git a/chrome/hide_toolbox_top_bottom_borders.css b/chrome/hide_toolbox_top_bottom_borders.css
index 29c6122..7377f27 100644
--- a/chrome/hide_toolbox_top_bottom_borders.css
+++ b/chrome/hide_toolbox_top_bottom_borders.css
@@ -1,6 +1,6 @@
 :root[sizemode="normal"]{ border-top: none !important }
 #navigator-toolbox::after{ content: none !important }
-
+#navigator-toolbox{ border-bottom: none !important }
 /* Removes few remaining extra lines above tabs in non-maximized windows */
 /* Also prevents small vertical shift when moving tabs in compact density - who knows why */
 :root[sizemode="normal"] #titlebar{ -moz-appearance: none !important; }
@@ -12,4 +12,4 @@
 /* Fx pre-65 */
 /* #navigator-toolbox > #TabsToolbar{margin-top: -2px;} */
 /* Fx65+ */
-/* #TabsToolbar > .toolbar-items > spacer{ display: none; } */
\ No newline at end of file
+/* #TabsToolbar > .toolbar-items > spacer{ display: none; } */