--- a/browser/themes/shared/toolbarbuttons.inc.css	2021-09-28 00:46:32.000000000 +0200
+++ b/browser/themes/shared/toolbarbuttons.inc.css	2021-10-12 12:14:29.155204427 +0200
@@ -54,6 +54,10 @@
 
 .toolbarbutton-1 > .toolbarbutton-icon {
   margin-inline-end: 0 !important;
+  height: 24px !important;
+  width: 24px !important;
+  padding: 0 !important;
+  margin: 0 4px !important;
 }
 
 .toolbarbutton-1 > .toolbarbutton-icon,
@@ -367,3 +371,16 @@
   margin-inline-end: -6px !important;
   background: url(chrome://browser/skin/badge-blue.svg);
 }
+
+#PersonalToolbar {
+	padding-left: 0px;
+}
+
+#PersonalToolbar > toolbarbutton {
+	margin: 0px !important;
+	padding: 0px !important;
+}
+
+#PersonalToolbar > toolbarbutton > image {
+	margin-inline-start: 0px !important;
+}
