From 0f56d5062cb40f681f483b8fef6ba62d2ee7e352 Mon Sep 17 00:00:00 2001
From: alstjr7375 <alstjr7375@daum.net>
Date: Wed, 13 Apr 2022 20:58:40 +0900
Subject: [PATCH] Fix: Windows10 - Top border apply for not accent mode #358

---
 userChrome.css | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/userChrome.css b/userChrome.css
index 5fce2d4..f0dce64 100644
--- a/userChrome.css
+++ b/userChrome.css
@@ -222,13 +222,19 @@ menu[disabled="true"] {
 }
 
 /*= Windows 10 - Top border of accent color at ESR #358 ======================*/
-@media (-moz-windows-accent-color-in-titlebar) {
+@media (-moz-os-version: windows-win10), /* Legacy - v99 */
+       (-moz-platform: windows-win10) {
   :root[sizemode=normal][tabsintitlebar] #navigator-toolbox {
-    border-top: .5px solid -moz-accent-color !important;
+    border-top: .5px solid rgb(47, 47, 47) !important;
   }
   :root[sizemode=normal][tabsintitlebar]:-moz-window-inactive #navigator-toolbox {
     border-top-color: rgb(57, 57, 57) !important;
   }
+  @media (-moz-windows-accent-color-in-titlebar) {
+    :root[sizemode=normal][tabsintitlebar] #navigator-toolbox {
+      border-top-color: -moz-accent-color !important;
+    }
+  }
 }
 
 @media (-moz-gtk-csd-available) {