diff --git a/dom/src/base/crashtests/372554-1.html b/dom/src/base/crashtests/372554-1.html
new file mode 100644
index 000000000000..a87edcecbf65
--- /dev/null
+++ b/dom/src/base/crashtests/372554-1.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<head>
+<script>
+function boom()
+{
+  if (location.protocol == "file:") {
+    try {
+      location.hostname = 'foo';
+    } catch(e) {
+    }
+  }
+  
+  document.documentElement.removeAttribute("class");
+}
+</script>
+</head>
+<body onload="setTimeout(boom, 30)">
+
+</body>
+
+</html>
diff --git a/dom/src/base/crashtests/crashtests.list b/dom/src/base/crashtests/crashtests.list
index b8cb666461b2..157707395444 100644
--- a/dom/src/base/crashtests/crashtests.list
+++ b/dom/src/base/crashtests/crashtests.list
@@ -1,3 +1,4 @@
 load 327571-1.html
 load 327695-1.html
 load 369413-1.html
+load 372554-1.html
