diff --git a/layout/generic/crashtests/387219-1.xhtml b/layout/generic/crashtests/387219-1.xhtml
new file mode 100644
index 00000000000..0439324079d
--- /dev/null
+++ b/layout/generic/crashtests/387219-1.xhtml
@@ -0,0 +1,8 @@
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+<head>
+<style id="s"></style>
+</head>
+<body onload="document.getElementById('s').appendChild(document.createTextNode('#sb { display: list-item; }'));">
+<xul:scrollbox id="sb"/>
+</body>
+</html>
diff --git a/layout/generic/crashtests/crashtests.list b/layout/generic/crashtests/crashtests.list
index 2c68a6a6844..95f30e89524 100644
--- a/layout/generic/crashtests/crashtests.list
+++ b/layout/generic/crashtests/crashtests.list
@@ -36,6 +36,7 @@ load 386827-1.html
 load 387058-1.html
 load 387058-2.html
 load 387209-1.html
+load 387219-1.xhtml
 load 388175-1.html
 load 388709-1.html
 load 390050-1.html
