diff --git a/gfx/tests/crashtests/746847.html b/gfx/tests/crashtests/746847.html
new file mode 100644
index 000000000000..01853a403052
--- /dev/null
+++ b/gfx/tests/crashtests/746847.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html>
+<head>
+<script>
+
+function boom()
+{
+  var ctx = document.querySelector("canvas").getContext('2d');
+  ctx.setTransform(75.875, 113.8, 144, 55, 185.4, 310);
+  ctx.translate(26.5, 72.6);
+  ctx.arcTo(183.6, 29.6, 94.33333333333333, 1, 72057594037927940);
+  ctx.arcTo(75.83333333333333, 73.71428571428571, 40.4, 88.8, 23.285714285714285);
+  ctx.fill();
+}
+
+</script>
+</head>
+<body onload="boom();"><canvas width="100" height="100"></canvas></body>
+</html>
diff --git a/gfx/tests/crashtests/crashtests.list b/gfx/tests/crashtests/crashtests.list
index d83c63f56fb9..4f83abf0a568 100644
--- a/gfx/tests/crashtests/crashtests.list
+++ b/gfx/tests/crashtests/crashtests.list
@@ -109,6 +109,7 @@ load 746491.html
 load 746495.html
 load 746497.html
 load 746844.html
+load 746847.html
 load 766452-1.html
 load 766452-2.html
 load 768079-1.html
