--- a/browser/themes/linux/compacttheme.css
+++ b/browser/themes/linux/compacttheme.css
@@ -29,19 +29,8 @@
 
 .urlbar-history-dropmarker {
   -moz-appearance: none;
   padding: 0 3px;
   list-style-image: var(--urlbar-dropmarker-url);
   -moz-image-region: var(--urlbar-dropmarker-region);
 }
 
-/* Fix the bad-looking text-shadow in the sidebar header: */
-.sidebar-header,
-#sidebar-header {
-  text-shadow: none;
-}
-
-.ac-type-icon {
-  /* Left-align the type icon in awesomebar popup results with the icon in the
-     urlbar. */
-  margin-inline-start: 11px;
-}

--- a/browser/themes/windows/compacttheme.css
+++ b/browser/themes/windows/compacttheme.css
@@ -25,20 +25,16 @@
 }
 
 @media (-moz-windows-compositor) {
   #main-window {
     background: transparent !important;
   }
 }
 
-#TabsToolbar::after {
-  display: none;
-}
-
 #toolbar-menubar {
   text-shadow: none !important;
 }
 
 @media (-moz-os-version: windows-win7),
        (-moz-os-version: windows-win8) {
 %ifndef MOZ_PHOTON_THEME
   :root {
@@ -155,13 +151,8 @@
   :root[sizemode="maximized"] #titlebar-max:-moz-lwtheme {
     list-style-image: url(chrome://browser/skin/window-controls/restore.svg);
   }
   #titlebar-close:-moz-lwtheme {
     list-style-image: url(chrome://browser/skin/window-controls/close.svg);
   }
 }
 
-.ac-type-icon {
-  /* Left-align the type icon in awesomebar popup results with the icon in the
-     urlbar. */
-  margin-inline-start: 13px;
-}