diff --git a/chrome/multi-row_tabs.css b/chrome/multi-row_tabs.css
index 888fadb..3c0d744 100644
--- a/chrome/multi-row_tabs.css
+++ b/chrome/multi-row_tabs.css
@@ -68,4 +68,4 @@
 #alltabs-button,
 :root:not([customizing]) #TabsToolbar #new-tab-button,
 #tabbrowser-tabs spacer,
-.tabbrowser-tab::after{ display: none }
\ No newline at end of file
+.tabbrowser-tab::after{ display: none !important }
\ No newline at end of file
diff --git a/chrome/multi-row_tabs_below_content_Fx66+.css b/chrome/multi-row_tabs_below_content_Fx66+.css
index 3faf55d..2bbb5bc 100644
--- a/chrome/multi-row_tabs_below_content_Fx66+.css
+++ b/chrome/multi-row_tabs_below_content_Fx66+.css
@@ -59,8 +59,7 @@ transform: translateY(calc(-4 * var(--toolbarbutton-outer-padding) + 4px))
 #toolbar-menubar > #menubar-items{
   -moz-box-pack: center;
   height: 100%;
-visibility: hidden;
-
+  visibility: hidden;
 }
 #toolbar-menubar:hover{ z-index: 2 }
 #toolbar-menubar:hover > #menubar-items{
@@ -122,7 +121,7 @@ visibility: hidden;
 #alltabs-button,
 #TabsToolbar #new-tab-button,
 #tabbrowser-tabs spacer,
-.tabbrowser-tab::after{ display: none } /* Also disables tab separators since they mysteriously break tab-row scrolling */
+.tabbrowser-tab::after{ display: none !important } /* Also disables tab separators since they mysteriously break tab-row scrolling */
 
 /* Always show tab close button on hover and never otherwise */
 .tabbrowser-tab .tab-close-button{