diff --git a/src/other/firefox/Monterey/colors/dark.css b/src/other/firefox/Monterey/colors/dark.css
index 180e985..fe523fc 100644
--- a/src/other/firefox/Monterey/colors/dark.css
+++ b/src/other/firefox/Monterey/colors/dark.css
@@ -29,7 +29,7 @@
 	--gnome-menu-border-color: #070707;
 	--gnome-popover-background: rgba(51, 51, 51, 0.95);
 	--gnome-popover-border-color: #070707;
-	--gnome-popover-shadow: 0 5px 8px rgba(0, 0, 0, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.06);
+	--gnome-popover-shadow: 0 5px 8px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(0, 0, 0, 0.75);
 	--gnome-popover-button-hover-background: rgba(255, 255, 255, 0.1);
 	--gnome-popover-button-active-background: rgba(255, 255, 255, 0.15);
 	--gnome-popover-separator-color: rgba(0, 0, 0, 0.1);
diff --git a/src/other/firefox/Monterey/colors/light.css b/src/other/firefox/Monterey/colors/light.css
index 0b5b0ae..65fddb6 100644
--- a/src/other/firefox/Monterey/colors/light.css
+++ b/src/other/firefox/Monterey/colors/light.css
@@ -29,7 +29,7 @@
 	--gnome-menu-border-color: #cdc7c2;
 	--gnome-popover-background: rgba(255, 255, 255, 0.95);
 	--gnome-popover-border-color: #cdc7c2;
-	--gnome-popover-shadow: 0 5px 8px rgba(0, 0, 0, 0.3);
+	--gnome-popover-shadow: 0 5px 8px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.12);
 	--gnome-popover-button-hover-background: rgba(0, 0, 0, 0.1);
 	--gnome-popover-button-active-background: rgba(0, 0, 0, 0.2);
 	--gnome-popover-separator-color: rgba(0, 0, 0, 0.1);
diff --git a/src/other/firefox/Monterey/parts/popups.css b/src/other/firefox/Monterey/parts/popups.css
index 044a347..9959361 100644
--- a/src/other/firefox/Monterey/parts/popups.css
+++ b/src/other/firefox/Monterey/parts/popups.css
@@ -8,10 +8,8 @@ menupopup, panel,
 :is(menupopup, panel)[type="arrow"] {
 	-moz-appearance: none !important;
 	--panel-background: var(--gnome-menu-background) !important;
-	--panel-border-color: var(--gnome-menu-border-color) !important;
 	--arrowpanel-border-radius: 12px !important;
 	--arrowpanel-background: var(--gnome-menu-background) !important;
-	--arrowpanel-border-color: var(--gnome-menu-border-color) !important;
 	--panel-border-radius: 12px !important;
 	--panel-padding: 6px !important;
 	--panel-shadow: var(--gnome-popover-shadow) !important;
@@ -19,6 +17,31 @@ menupopup, panel,
 	color: var(--gnome-toolbar-color) !important;
 }
 
+menupopup, panel,
+:is(menupopup, panel)[type="arrow"]
+:is(panel, menupopup)::part(content) {
+	--panel-border-color: transparent !important;
+	--arrowpanel-border-color: transparent !important;
+
+}
+
+.panel-arrowcontent {
+	border: none !important;
+}
+
+@media (prefers-color-scheme: dark) {
+menupopup, panel,
+:is(menupopup, panel)[type="arrow"]
+:is(panel, menupopup)::part(content) {
+	--panel-border-color: rgba(255, 255, 255, 0.06) !important;
+	--arrowpanel-border-color: rgba(255, 255, 255, 0.06) !important;
+}
+
+.panel-arrowcontent {
+	border: 1px solid rgba(255, 255, 255, 0.06) !important;
+}
+}
+
 menupopup label {
 	color: var(--gnome-toolbar-color) !important;
 }
@@ -29,7 +52,6 @@ menupopup label {
 	background: none !important;
 	padding: 3px 4px 6px !important;
 	margin: -3px 0 0 -12px !important;
-	border: none !important;
 }
 
 menubar > menu > menupopup {
@@ -38,7 +60,6 @@ menubar > menu > menupopup {
 }
 
 menuitem, menupopup menu {
-	border: none !important;
 	box-shadow: none !important;
 }
 
@@ -50,14 +71,9 @@ menuitem[disabled="true"]:hover, menupopup menu[disabled="true"]:hover {
 	background: transparent !important;
 }
 
-:is(panel, menupopup)::part(content) {
-	border: none !important;
-}
-
 /* Adjust popovers position */
 panel[type="arrow"] {
 	appearance: none !important;
-	border: none !important;
 	background-color: transparent !important;
 	margin-top: 8px !important;
 }
@@ -67,7 +83,6 @@ panel[type="arrow"] {
 .panel-header, .PanelUI-subView,
 .panel-subview-body, #widget-overflow-mainView, #protections-popup-footer,
 panelview {
-	border: none !important;
 	background: none !important;
 }
 
@@ -76,7 +91,6 @@ panelview {
 }
 
 #customization-panelWrapper > .panel-arrowcontent {
-	border: 1px solid var(--gnome-menu-border-color) !important;
 	box-shadow: var(--gnome-popover-shadow) !important;
 	border-radius: 12px !important;
 	background: var(--gnome-menu-background) !important;
@@ -84,7 +98,7 @@ panelview {
 
 #customization-panelWrapper > .panel-arrowbox > .panel-arrow[side="top"] {
 	fill: var(--gnome-menu-background) !important;
-	stroke: var(--gnome-menu-border-color) !important;
+	stroke: transparent !important;
 }
 
 #BMB_bookmarksPopup {
@@ -242,7 +256,7 @@ panelview > toolbarseparator:not([orient="vertical"]),
 /* Auto complete popups */
 panel[type="autocomplete-richlistbox"] {
 	background: var(--gnome-menu-background) !important;
-	border: 1px solid var(--gnome-menu-border-color) !important;
+	border: 0 !important;
 	padding: 4px 0 !important;
 	color: var(--gnome-toolbar-color) !important;
 }
diff --git a/src/other/firefox/WhiteSur/colors/dark.css b/src/other/firefox/WhiteSur/colors/dark.css
index 8d74239..00d3de7 100644
--- a/src/other/firefox/WhiteSur/colors/dark.css
+++ b/src/other/firefox/WhiteSur/colors/dark.css
@@ -30,7 +30,7 @@
 	--gnome-menu-border-color: #070707;
 	--gnome-popover-background: rgba(51, 51, 51, 0.95);
 	--gnome-popover-border-color: #070707;
-	--gnome-popover-shadow: 0 5px 8px rgba(0, 0, 0, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.06);
+	--gnome-popover-shadow: 0 5px 8px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(0, 0, 0, 0.75);
 	--gnome-popover-button-hover-background: rgba(255, 255, 255, 0.1);
 	--gnome-popover-button-active-background: rgba(255, 255, 255, 0.15);
 	--gnome-popover-separator-color: rgba(0, 0, 0, 0.1);
diff --git a/src/other/firefox/WhiteSur/colors/light.css b/src/other/firefox/WhiteSur/colors/light.css
index 6e05c69..e86d262 100644
--- a/src/other/firefox/WhiteSur/colors/light.css
+++ b/src/other/firefox/WhiteSur/colors/light.css
@@ -29,7 +29,7 @@
 	--gnome-menu-border-color: #cdc7c2;
 	--gnome-popover-background: rgba(255, 255, 255, 0.95);
 	--gnome-popover-border-color: #cdc7c2;
-	--gnome-popover-shadow: 0 5px 8px rgba(0, 0, 0, 0.3);
+	--gnome-popover-shadow: 0 5px 8px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.12);
 	--gnome-popover-button-hover-background: rgba(0, 0, 0, 0.1);
 	--gnome-popover-button-active-background: rgba(0, 0, 0, 0.2);
 	--gnome-popover-separator-color: rgba(0, 0, 0, 0.1);
diff --git a/src/other/firefox/WhiteSur/parts/popups.css b/src/other/firefox/WhiteSur/parts/popups.css
index 044a347..9959361 100644
--- a/src/other/firefox/WhiteSur/parts/popups.css
+++ b/src/other/firefox/WhiteSur/parts/popups.css
@@ -8,10 +8,8 @@ menupopup, panel,
 :is(menupopup, panel)[type="arrow"] {
 	-moz-appearance: none !important;
 	--panel-background: var(--gnome-menu-background) !important;
-	--panel-border-color: var(--gnome-menu-border-color) !important;
 	--arrowpanel-border-radius: 12px !important;
 	--arrowpanel-background: var(--gnome-menu-background) !important;
-	--arrowpanel-border-color: var(--gnome-menu-border-color) !important;
 	--panel-border-radius: 12px !important;
 	--panel-padding: 6px !important;
 	--panel-shadow: var(--gnome-popover-shadow) !important;
@@ -19,6 +17,31 @@ menupopup, panel,
 	color: var(--gnome-toolbar-color) !important;
 }
 
+menupopup, panel,
+:is(menupopup, panel)[type="arrow"]
+:is(panel, menupopup)::part(content) {
+	--panel-border-color: transparent !important;
+	--arrowpanel-border-color: transparent !important;
+
+}
+
+.panel-arrowcontent {
+	border: none !important;
+}
+
+@media (prefers-color-scheme: dark) {
+menupopup, panel,
+:is(menupopup, panel)[type="arrow"]
+:is(panel, menupopup)::part(content) {
+	--panel-border-color: rgba(255, 255, 255, 0.06) !important;
+	--arrowpanel-border-color: rgba(255, 255, 255, 0.06) !important;
+}
+
+.panel-arrowcontent {
+	border: 1px solid rgba(255, 255, 255, 0.06) !important;
+}
+}
+
 menupopup label {
 	color: var(--gnome-toolbar-color) !important;
 }
@@ -29,7 +52,6 @@ menupopup label {
 	background: none !important;
 	padding: 3px 4px 6px !important;
 	margin: -3px 0 0 -12px !important;
-	border: none !important;
 }
 
 menubar > menu > menupopup {
@@ -38,7 +60,6 @@ menubar > menu > menupopup {
 }
 
 menuitem, menupopup menu {
-	border: none !important;
 	box-shadow: none !important;
 }
 
@@ -50,14 +71,9 @@ menuitem[disabled="true"]:hover, menupopup menu[disabled="true"]:hover {
 	background: transparent !important;
 }
 
-:is(panel, menupopup)::part(content) {
-	border: none !important;
-}
-
 /* Adjust popovers position */
 panel[type="arrow"] {
 	appearance: none !important;
-	border: none !important;
 	background-color: transparent !important;
 	margin-top: 8px !important;
 }
@@ -67,7 +83,6 @@ panel[type="arrow"] {
 .panel-header, .PanelUI-subView,
 .panel-subview-body, #widget-overflow-mainView, #protections-popup-footer,
 panelview {
-	border: none !important;
 	background: none !important;
 }
 
@@ -76,7 +91,6 @@ panelview {
 }
 
 #customization-panelWrapper > .panel-arrowcontent {
-	border: 1px solid var(--gnome-menu-border-color) !important;
 	box-shadow: var(--gnome-popover-shadow) !important;
 	border-radius: 12px !important;
 	background: var(--gnome-menu-background) !important;
@@ -84,7 +98,7 @@ panelview {
 
 #customization-panelWrapper > .panel-arrowbox > .panel-arrow[side="top"] {
 	fill: var(--gnome-menu-background) !important;
-	stroke: var(--gnome-menu-border-color) !important;
+	stroke: transparent !important;
 }
 
 #BMB_bookmarksPopup {
@@ -242,7 +256,7 @@ panelview > toolbarseparator:not([orient="vertical"]),
 /* Auto complete popups */
 panel[type="autocomplete-richlistbox"] {
 	background: var(--gnome-menu-background) !important;
-	border: 1px solid var(--gnome-menu-border-color) !important;
+	border: 0 !important;
 	padding: 4px 0 !important;
 	color: var(--gnome-toolbar-color) !important;
 }