From 0265b9ff623b33bb562c290a952e653d08c187dc Mon Sep 17 00:00:00 2001
From: Johann Hofmann <jhofmann@mozilla.com>
Date: Thu, 17 Aug 2017 19:50:11 +0200
Subject: [PATCH] Bug 1391328 - Remove top border from tabs on OSX. r=nhnt11

MozReview-Commit-ID: B2dmIlJLM2j

--HG--
extra : rebase_source : be24d5c5ee3a96aef5d3b217e8014dd38cea8565
---
 browser/themes/shared/tabs.inc.css | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/browser/themes/shared/tabs.inc.css b/browser/themes/shared/tabs.inc.css
index b67ae3185fe9..cef1fa04f162 100644
--- a/browser/themes/shared/tabs.inc.css
+++ b/browser/themes/shared/tabs.inc.css
@@ -308,9 +308,11 @@
   background-clip: padding-box;
 }
 
+%ifdef MENUBAR_CAN_AUTOHIDE
 #toolbar-menubar:not([autohide=true]) ~ #TabsToolbar > #tabbrowser-tabs > .tabbrowser-tab > .tab-stack > .tab-background {
   border-top-style: solid;
 }
+%endif
 
 .tab-background[selected=true] {
   border-left-style: solid;