diff --git a/layout/generic/crashtests/452157-1.html b/layout/generic/crashtests/452157-1.html
new file mode 100644
index 000000000000..92a784cd5c9e
--- /dev/null
+++ b/layout/generic/crashtests/452157-1.html
@@ -0,0 +1,8 @@
+<html>
+<head></head>
+<body>
+
+<div style="float: left; -moz-column-count: 3;"><div><div style="margin: 1em 0pt; float: left;"><span style="display: inline-block; width: 16px; height: 16px;"></span></div><div style="margin: 1em 0pt; float: left;"></div><br style="display: inherit; clear: both;"> </div></div>
+
+</body>
+</html>
diff --git a/layout/generic/crashtests/452157-2.html b/layout/generic/crashtests/452157-2.html
new file mode 100644
index 000000000000..bf7297789aa6
--- /dev/null
+++ b/layout/generic/crashtests/452157-2.html
@@ -0,0 +1,39 @@
+<html>
+<head>
+<style>
+  div.a  {
+    -moz-column-count: 2;
+    float: left;
+    background: lightblue;
+  }
+  div.b  {}
+  div.c  {
+    float: left;
+    height: 23px;
+    width:  10px;
+    background: orange;
+  }
+  div.d  {
+    float: left;
+    height: 22px;
+    width:  10px;
+    background: green;
+  }
+  div.e  {
+    clear: left;
+  }
+</style>
+</head>
+<body
+   ><div class="a"
+       ><div class="b"
+           ><div class="c"
+           ></div
+           ><div class="d"
+           ></div
+           ><div class="e"
+           ></div
+       > <!-- whitespace --></div
+   ></div
+></body>
+</html>
diff --git a/layout/generic/crashtests/452157-3.html b/layout/generic/crashtests/452157-3.html
new file mode 100644
index 000000000000..104f282a1f78
--- /dev/null
+++ b/layout/generic/crashtests/452157-3.html
@@ -0,0 +1,39 @@
+<html>
+<head>
+<style>
+  div.a  {
+    -moz-column-count: 2;
+    position: absolute;
+    background: lightblue;
+  }
+  div.b  {}
+  div.c  {
+    float: left;
+    height: 23px;
+    width:  10px;
+    background: orange;
+  }
+  div.d  {
+    float: left;
+    height: 22px;
+    width:  10px;
+    background: green;
+  }
+  div.e  {
+    clear: left;
+  }
+</style>
+</head>
+<body
+   ><div class="a"
+       ><div class="b"
+           ><div class="c"
+           ></div
+           ><div class="d"
+           ></div
+           ><div class="e"
+           ></div
+       > <!-- whitespace --></div
+   ></div
+></body>
+</html>
diff --git a/layout/generic/crashtests/crashtests.list b/layout/generic/crashtests/crashtests.list
index 109f6a99801f..bbaeb815dd72 100644
--- a/layout/generic/crashtests/crashtests.list
+++ b/layout/generic/crashtests/crashtests.list
@@ -160,6 +160,9 @@ load 438509-1.html
 load 443528-1.html
 load 448903-1.html
 load 451334-1.html
+load 452157-1.html
+load 452157-2.html
+load 452157-3.html
 load 455171-1.html
 load 455171-2.html
 load 455171-3.html
