diff --git a/layout/reftests/bugs/372553-1-ref.html b/layout/reftests/bugs/372553-1-ref.html
new file mode 100644
index 00000000000..3ca9eea8a1a
--- /dev/null
+++ b/layout/reftests/bugs/372553-1-ref.html
@@ -0,0 +1,25 @@
+﻿<!DOCTYPE html>
+<html>
+<head>
+
+<style>
+
+body {
+  width: 5em;
+  font-family: monospace;
+  border: 1px solid yellow; 
+}
+
+body:first-letter { 
+  color: blue; 
+}
+
+</style>
+
+</head>
+<body>
+
+<span><span></span>Bbbbbbbbbbbbbb<span></span></span>
+
+</body>
+</html>
diff --git a/layout/reftests/bugs/372553-1.html b/layout/reftests/bugs/372553-1.html
new file mode 100644
index 00000000000..9f2a5024f14
--- /dev/null
+++ b/layout/reftests/bugs/372553-1.html
@@ -0,0 +1,31 @@
+﻿<!DOCTYPE html>
+<html>
+<head>
+
+<style>
+
+body {
+  width: 5em;
+  font-family: monospace;
+  border: 1px solid yellow; 
+}
+
+body:first-letter { 
+  color: blue; 
+}
+
+</style>
+
+</head>
+<body>
+
+<span><span><span id="sss">Aaa </span></span>Bbbbbbbbbbbbbb<span></span></span>
+
+<script>
+document.body.offsetWidth;
+sss = document.getElementById("sss");
+sss.parentNode.removeChild(sss);
+</script>
+
+</body>
+</html>
diff --git a/layout/reftests/bugs/reftest.list b/layout/reftests/bugs/reftest.list
index f287e0ea59c..8732e9add7b 100644
--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -164,3 +164,4 @@ fails == 368020-4.html 368020-4-ref.html # bug 368085
 == 370692-1.xhtml 370692-1-ref.xhtml
 == 371925-1a.html 371925-1-ref.html
 == 371925-1b.html 371925-1-ref.html
+== 372553-1.html 372553-1-ref.html
