diff --git a/profiles/gui/home/firefox/default.nix b/profiles/gui/home/firefox/default.nix
index e16509da..25d0f731 100644
--- a/profiles/gui/home/firefox/default.nix
+++ b/profiles/gui/home/firefox/default.nix
@@ -34,7 +34,7 @@ in {
       refined-github
       stylus
       terms-of-service-didnt-read
-      tabcenter-reborn
+      tree-style-tab
       tridactyl
       ublock-origin
       violentmonkey
diff --git a/profiles/gui/home/firefox/userChrome.css.nix b/profiles/gui/home/firefox/userChrome.css.nix
index dd655c94..279b6123 100644
--- a/profiles/gui/home/firefox/userChrome.css.nix
+++ b/profiles/gui/home/firefox/userChrome.css.nix
@@ -1,15 +1,15 @@
 { profile }:
 
 ''
-  #main-window[tabsintitlebar="true"]:not([extradragspace="true"]) #TabsToolbar > .toolbar-items {
-    opacity: 0;
-    pointer-events: none;
-  }
-  #main-window:not([tabsintitlebar="true"]) #TabsToolbar {
-      visibility: collapse !important;
-  }
+#main-window[tabsintitlebar="true"]:not([extradragspace="true"]) #TabsToolbar > .toolbar-items {
+  opacity: 0;
+  pointer-events: none;
+}
+#main-window:not([tabsintitlebar="true"]) #TabsToolbar {
+    visibility: collapse !important;
+}
 
-  #sidebar-box[sidebarcommand="tabcenter-reborn_ariasuni-sidebar-action"] #sidebar-header {
-    visibility: collapse;
-  }
+#sidebar-box[sidebarcommand="treestyletab_piro_sakura_ne_jp-sidebar-action"] #sidebar-header {
+  display: none;
+}
 ''