From c7ec9aa13a97cb7f07cffe82f6767a0067b222c4 Mon Sep 17 00:00:00 2001
From: bmFtZQ <62812711+bmFtZQ@users.noreply.github.com>
Date: Thu, 23 Nov 2023 13:58:13 +0800
Subject: [PATCH] Hide 1st tab separator if there is nothing before

---
 chrome/toolbar/tabbar.css | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/chrome/toolbar/tabbar.css b/chrome/toolbar/tabbar.css
index 6594d8a..781cf66 100644
--- a/chrome/toolbar/tabbar.css
+++ b/chrome/toolbar/tabbar.css
@@ -328,6 +328,11 @@ toolbarbutton[part="scrollbutton-down"] {
   border-color: transparent !important;
 }
 
+/* Hide first tab separator if there are no buttons before it (Such as Firefox View) */
+#TabsToolbar-customization-target > #tabbrowser-tabs:not(toolbarbutton:not(#fxa-toolbar-menu-button) + #tabbrowser-tabs) .tabbrowser-tab:first-of-type .tab-stack::before {
+  border-color: transparent !important;
+}
+
 /* .tabbrowser-tab:not([last-visible-tab="true"]) {
   margin-inline-end: -1px !important;
 } */