diff --git a/css/leptonContent.css b/css/leptonContent.css
index 49e5e9b1..f8d133a2 100644
--- a/css/leptonContent.css
+++ b/css/leptonContent.css
@@ -3292,7 +3292,7 @@
 /** Menu - Icons Layout *******************************************************/
 @supports not -moz-bool-pref("userChrome.icon.disabled") {
   @supports -moz-bool-pref("userChrome.icon.menu") {
-    @-moz-document url-prefix("about:"), regexp("^(((jar:)?file:///)|(chrome://)).*/$")
+    @-moz-document url-prefix("about:"), url-prefix("chrome://"), regexp("^((jar:)?file:///).*/$")
     {
       :root {
         --uc-folder-icon: url("chrome://global/skin/icons/folder.svg");
@@ -7130,7 +7130,7 @@
 }
 /** Menu - Icons Layout *******************************************************/
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") {
-  @-moz-document url-prefix("about:"), regexp("^(((jar:)?file:///)|(chrome://)).*/$")
+  @-moz-document url-prefix("about:"), url-prefix("chrome://"), regexp("^((jar:)?file:///).*/$")
   {
     :root {
       --uc-folder-icon: url("chrome://global/skin/icons/folder.svg");
diff --git a/css/leptonContentESR.css b/css/leptonContentESR.css
index b984d3a9..847673e2 100644
--- a/css/leptonContentESR.css
+++ b/css/leptonContentESR.css
@@ -3295,7 +3295,7 @@
 /** Menu - Icons Layout *******************************************************/
 @supports not -moz-bool-pref("userChrome.icon.disabled") {
   @supports -moz-bool-pref("userChrome.icon.menu") {
-    @-moz-document url-prefix("about:"), regexp("^(((jar:)?file:///)|(chrome://)).*/$")
+    @-moz-document url-prefix("about:"), url-prefix("chrome://"), regexp("^((jar:)?file:///).*/$")
     {
       :root {
         --uc-folder-icon: url("chrome://global/skin/icons/folder.svg");
diff --git a/src/contents/_context_menu.scss b/src/contents/_context_menu.scss
index c505af79..c4a2e7ed 100644
--- a/src/contents/_context_menu.scss
+++ b/src/contents/_context_menu.scss
@@ -2,7 +2,8 @@
 
 @include moz-document(
   url-prefix "about:",
-  regexp "^(((jar:)?file:\/\/\/)|(chrome:\/\/)).*\/$"
+  url-prefix "chrome://",
+  regexp "^((jar:)?file:\/\/\/).*\/$"
 ) {
   :root {
     @include initIcons;