diff --git a/mozilla/layout/base/crashtests/409513.html b/mozilla/layout/base/crashtests/409513.html
new file mode 100644
index 00000000000..a2aff4462d4
--- /dev/null
+++ b/mozilla/layout/base/crashtests/409513.html
@@ -0,0 +1,14 @@
+<DOCTYPE html>
+<html>
+<head>
+</head>
+
+<body style="visibility: collapse;" onload="document.getElementById('div').style.direction = 'rtl';">
+
+<div style="display: -moz-groupbox;" id="div">
+aaaaa bbbbb ccccc ddddd eeeee fffff ggggg hhhhh iiiii
+</div>
+
+</body>
+
+</html>
diff --git a/mozilla/layout/base/crashtests/410967.html b/mozilla/layout/base/crashtests/410967.html
new file mode 100644
index 00000000000..4895384f547
--- /dev/null
+++ b/mozilla/layout/base/crashtests/410967.html
@@ -0,0 +1,17 @@
+<DOCTYPE html>
+<html>
+<head>
+<script type="text/javascript">
+
+function boom()
+{
+  var t = document.body.firstChild;
+  t.data = "a" + t.data;
+}
+
+</script>
+</head>
+
+<body onload="boom();" style="width: 1px;">b c&#1603;</body>
+
+</html>
diff --git a/mozilla/layout/base/crashtests/crashtests.list b/mozilla/layout/base/crashtests/crashtests.list
index d4e0143d72a..7c94ef49734 100644
--- a/mozilla/layout/base/crashtests/crashtests.list
+++ b/mozilla/layout/base/crashtests/crashtests.list
@@ -89,6 +89,8 @@ load 405184-1.xhtml
 load 405186-1.xhtml
 load 408292.html
 load 408299.html
+load 409513.html
 load 409461-1.xhtml
+load 410967.html
 load 411870-1.html
 
