new file mode 100644
--- /dev/null
+++ b/layout/reftests/bugs/1043537-1-ref.html
@@ -0,0 +1,32 @@
+<html>
+<head>
+<meta charset="utf-8" />
+<title>Resizable pseudo-elements testcase</title>
+<style>
+/**
+ * Resizable pseudo-elements testcase
+ * Currently buggy in both WebKit/Blink and Gecko:
+ * https://bugs.webkit.org/show_bug.cgi?id=135243
+ * https://bugzilla.mozilla.org/show_bug.cgi?id=1043537
+ */
+
+div {
+ width: 200px;
+ height: 200px;
+ background: yellow;
+}
+
+div:before {
+ content: '';
+ background: hotpink;
+ display: block;
+ width: 40px;
+ height: 40px;
+ overflow: hidden;
+}
+</style>
+</head>
+<body>
+ <div></div>
+</body>
+</html>
new file mode 100644
--- /dev/null
+++ b/layout/reftests/bugs/1043537-1.html
@@ -0,0 +1,33 @@
+<html>
+<head>
+<meta charset="utf-8" />
+<title>Resizable pseudo-elements testcase</title>
+<style>
+/**
+ * Resizable pseudo-elements testcase
+ * Currently buggy in both WebKit/Blink and Gecko:
+ * https://bugs.webkit.org/show_bug.cgi?id=135243
+ * https://bugzilla.mozilla.org/show_bug.cgi?id=1043537
+ */
+
+div {
+ width: 200px;
+ height: 200px;
+ background: yellow;
+}
+
+div:before {
+ content: '';
+ background: hotpink;
+ display: block;
+ width: 40px;
+ height: 40px;
+ overflow: hidden;
+ resize: both;
+}
+</style>
+</head>
+<body>
+ <div></div>
+</body>
+</html>
--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -1832,16 +1832,17 @@ fuzzy-if(/^Windows\x20NT\x205\.1/.test(h
== 1021564-2.html 1021564-ref.html
== 1021564-3.html 1021564-ref.html
== 1021564-4.html 1021564-ref.html
pref(browser.display.use_document_fonts,0) == 1022481-1.html 1022481-1-ref.html
fuzzy-if(d2d,1,125200) fuzzy-if(skiaContent,1,126000) == 1022612-1.html 1022612-1-ref.html
== 1024473-1.html 1024473-1-ref.html
fuzzy-if(skiaContent,1,24000) == 1025914-1.html 1025914-1-ref.html
== 1042104-1.html 1042104-1-ref.html
+== 1043537-1.html 1043537-1-ref.html
== 1044198-1.html 1044198-1-ref.html
== 1049499-1.html 1049499-1-ref.html
== 1050493-1.html 1050493-1-ref.html
== 1050788-1.html about:blank
== 1053035-1-flex.html 1053035-1-ref.html
test-pref(layout.css.grid.enabled,true) == 1053035-1-grid.html 1053035-1-ref.html
== 1059167-1.html 1059167-1-ref.html
== 1059498-1.html 1059498-1-ref.html
