diff --git a/chrome/compact_proton.css b/chrome/compact_proton.css
index b82049c..1f71216 100644
--- a/chrome/compact_proton.css
+++ b/chrome/compact_proton.css
@@ -12,7 +12,7 @@ See the above repository for updates as well as full license text. */
   --arrowpanel-padding: 0.8em !important;
   --inline-tab-padding: 8px !important; /* 8px is default value since it looks good - lower values compactify tabs horizontally */
 }
-.subview-subheader{ height: 24px }
+.subview-subheader{ display: -moz-box }
 menupopup > menuitem,
 menupopup > menu{ padding-block: 0.3em !important; }