--- a/browser/themes/linux/devedition.css
+++ b/browser/themes/linux/devedition.css
@@ -3,16 +3,27 @@
 % file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 %include ../shared/devedition.inc.css
 
 :root {
   --forwardbutton-width: 29px;
 }
 
+:root[devtoolstheme="light"] {
+  --urlbar-dropmarker-url: url("chrome://browser/skin/devedition/urlbar-history-dropmarker.svg");
+  --urlbar-dropmarker-region: rect(0px, 11px, 14px, 0px);
+  --urlbar-dropmarker-hover-region: rect(0, 22px, 14px, 11px);
+  --urlbar-dropmarker-active-region: rect(0px, 33px, 14px, 22px);
+  --urlbar-dropmarker-2x-url: url("chrome://browser/skin/devedition/urlbar-history-dropmarker.svg");
+  --urlbar-dropmarker-2x-region: rect(0px, 11px, 14px, 0px);
+  --urlbar-dropmarker-hover-2x-region: rect(0, 22px, 14px, 11px);
+  --urlbar-dropmarker-active-2x-region: rect(0px, 33px, 14px, 22px);
+}
+
 :root[devtoolstheme="dark"] .findbar-closebutton:not(:hover),
 :root[devtoolstheme="dark"] #sidebar-header > .close-icon:not(:hover),
 .tab-close-button[visuallyselected]:not(:hover) {
   background-image: -moz-image-rect(url("chrome://global/skin/icons/close.svg"), 0, 80, 16, 64);
 }
 
 /* The menubar and tabs toolbar should match the devedition theme */
 #TabsToolbar,