diff --git a/firefox/userChrome.css b/firefox/userChrome.css
index 6f53e06..475ba46 100644
--- a/firefox/userChrome.css
+++ b/firefox/userChrome.css
@@ -1,18 +1,29 @@
+* {
+  border-radius: 0 !important;
+}
+
+/* Tabbar */
+
 #main-window[tabsintitlebar="true"]:not([extradragspace="true"]) #TabsToolbar {
   opacity: 0;
   pointer-events: none;
 }
+
 #main-window:not([tabsintitlebar="true"]) #TabsToolbar {
     visibility: collapse !important;
 }
+
 #sidebar-box[sidebarcommand="treestyletab_piro_sakura_ne_jp-sidebar-action"] #sidebar-header {
   display: none;
 }
 
+/* Addressbar */
+
+#urlbar-background {
+  background-color: #e0e0e0 !important;
+  border-color: #adadad !important;
+}
+
 #star-button-box {
   display: none;
 }
-
-* {
-  border-radius: 0 !important;
-}