diff --git a/gfx/tests/crashtests/595727-1.html b/gfx/tests/crashtests/595727-1.html
new file mode 100644
index 000000000000..3b5d242aa8c1
--- /dev/null
+++ b/gfx/tests/crashtests/595727-1.html
@@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<head>
+<script>
+
+function doTest()
+{
+  var r = document.documentElement;
+  while(r.firstChild) { r.removeChild(r.firstChild); }
+  var body = document.createElementNS("http://www.w3.org/1999/xhtml", "body"); 
+  r.appendChild(body); 
+  body.contentEditable = "true"; 
+  document.execCommand("inserthtml", false, "<span style=\"position:relative;left:0.8px\">a<select></select>a</span>"); 
+
+  document.documentElement.removeAttribute("class");
+}
+
+document.addEventListener("MozReftestInvalidate", doTest, false);
+</script>
+</head>
+
+<body></body>
+</html>
diff --git a/gfx/tests/crashtests/crashtests.list b/gfx/tests/crashtests/crashtests.list
index 45417d0ed7be..6949f68b477b 100644
--- a/gfx/tests/crashtests/crashtests.list
+++ b/gfx/tests/crashtests/crashtests.list
@@ -80,3 +80,4 @@ load 580100-1.html
 load 580212-1.html
 skip-if(gtk2Widget) load 580233-1.html
 load 580719-1.html
+load 595727-1.html
