diff --git a/browser/base/content/aboutDialog.css b/browser/base/content/aboutDialog.css
index 017125bc2510e5f5e317a5e78c40d6aa9ded76ca..d343d8c62a2251e3c3a33ae8f2ab9c4c68218c22 100644
--- a/browser/base/content/aboutDialog.css
+++ b/browser/base/content/aboutDialog.css
@@ -135,6 +135,13 @@
   margin: 0 40px;
 }
 
+#trademark {
+  font-size: xx-small;
+  text-align: center;
+  margin-block: 10px;
+  color: var(--text-color-deemphasized);
+}
+
 #currentChannel {
   margin: 0;
   padding: 0;
