diff --git a/src/other/firefox/WhiteSur/parts/tabsbar.css b/src/other/firefox/WhiteSur/parts/tabsbar.css
index 2001a4d9..e36d5c47 100644
--- a/src/other/firefox/WhiteSur/parts/tabsbar.css
+++ b/src/other/firefox/WhiteSur/parts/tabsbar.css
@@ -351,14 +351,14 @@ tab[selected]:-moz-window-inactive {
 }
 
 /* Tab hover */
-#TabsToolbar .tabbrowser-tab:hover > .tab-stack > .tab-background:not([selected=true]) {
+#TabsToolbar .tabbrowser-tab:not([selected=true]):hover > .tab-stack > .tab-background {
 	background-color: var(--gnome-tabbar-tab-active-hover-background) !important;
 	border-image: none !important;
 	box-shadow: inset 0 1px var(--gnome-toolbar-border-color), inset 0 -1px var(--gnome-toolbar-border-color) !important;
 }
 
 /* Active tab */
-.tab-background[selected=true] {
+#TabsToolbar .tabbrowser-tab[selected=true] > .tab-stack > .tab-background {
 	background-color: var(--gnome-tabbar-tab-active-background) !important;
 	background-image: none !important;
 	border: none !important;
@@ -372,7 +372,7 @@ tab[selected]:-moz-window-inactive {
 	            inset 0 -1px var(--gnome-toolbar-border-color) !important;
 }
 
-.tab-background[selected=true]:-moz-window-inactive {
+#TabsToolbar .tabbrowser-tab[selected=true] > .tab-stack > .tab-background:-moz-window-inactive {
 	background-color: var(--gnome-inactive-tabbar-tab-active-background) !important;
 	border-image: none !important;
 }
@@ -404,7 +404,13 @@ tab[selected]:-moz-window-inactive {
 	border-radius: 0 !important;
 	min-width: 32px !important;
 	min-height: 32px !important;
-	padding: 0 !important;
+	padding: 0 4px !important;
+	border: none !important;
+}
+
+#TabsToolbar .toolbarbutton-1[open] {
+	background-color: var(--gnome-tabbar-tab-active-background) !important;
+	box-shadow: inset 0 -1px var(--gnome-toolbar-border-color) !important;
 }
 
 #TabsToolbar .toolbarbutton-1 > .toolbarbutton-icon,
@@ -418,10 +424,14 @@ tab[selected]:-moz-window-inactive {
 	height: 32px !important;
 }
 
-#alltabs-button {
+#TabsToolbar #alltabs-button {
 	display: none !important;
 }
 
+#TabsToolbar #tabs-newtab-button {
+	padding: 0 !important;
+}
+
 /* firefox-view-button */
 :root:not([privatebrowsingmode="temporary"]):not([firefoxviewhidden]) :is(#firefox-view-button, #wrapper-firefox-view-button) + #tabbrowser-tabs {
 	border-inline-start: 1px solid var(--gnome-toolbar-border-color) !important;