diff --git a/content/canvas/test/reftest/reftest.list b/content/canvas/test/reftest/reftest.list
index b024b84199d..88924a54a4c 100644
--- a/content/canvas/test/reftest/reftest.list
+++ b/content/canvas/test/reftest/reftest.list
@@ -33,6 +33,9 @@ pref(webgl.force-layers-readback,true)                      random-if(Android&&A
 pref(webgl.force-layers-readback,true) fuzzy-if(B2G,256,83) random-if(Android&&AndroidVersion<15)  == webgl-clear-test.html?readback&__&alpha&preserve  wrapper.html?green.png
 pref(webgl.force-layers-readback,true) fuzzy-if(B2G,256,83) random-if(Android&&AndroidVersion<15)  == webgl-clear-test.html?readback&aa&alpha&preserve  wrapper.html?green.png
 
+# Check that resize works:
+== webgl-resize-test.html  wrapper.html?green.png
+
 # Check orientation:
                      random-if(Android&&AndroidVersion<15)  == webgl-orientation-test.html?__&_____&________  wrapper.html?white-top-left.png
                      random-if(Android&&AndroidVersion<15)  == webgl-orientation-test.html?aa&_____&________  wrapper.html?white-top-left.png
diff --git a/content/canvas/test/reftest/webgl-resize-test.html b/content/canvas/test/reftest/webgl-resize-test.html
new file mode 100644
index 00000000000..5a0db7cd2dd
--- /dev/null
+++ b/content/canvas/test/reftest/webgl-resize-test.html
@@ -0,0 +1,58 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<head>
+<meta charset="UTF-8">
+
+<script type="text/javascript" src="webgl-utils.js"></script>
+<script type="text/javascript">
+/* Resize Test
+ *
+ * Create canvas of wrong size.
+ * Clear the canvas to red.
+ * Resize to correct size.
+ * Clear to green.
+ */
+
+"use strict";
+
+function render(gl) {
+  gl.clearColor(1.0, 0.0, 0.0, 1.0);
+  gl.clear(gl.COLOR_BUFFER_BIT);
+
+  gl.canvas.width = 256;
+  gl.canvas.height = 256;
+  gl.clearColor(0.0, 1.0, 0.0, 1.0);
+  gl.clear(gl.COLOR_BUFFER_BIT);
+
+  gl.finish();
+}
+
+function renderFailure(canvas) {
+  // This will also trigger RAF for us.
+  var context = canvas.getContext("2d");
+  context.fillText('WebGL failed.', 64, 64);
+}
+
+function runTest() {
+  var canvas = document.getElementById("canvas");
+
+  var gl = initGL(canvas);
+  if (gl)
+    render(gl);
+  else
+    renderFailure(canvas);
+
+  testComplete();
+}
+
+function testComplete() {
+  document.documentElement.removeAttribute("class");
+}
+</script>
+</head>
+
+<body onload="rAF(runTest);">
+  <canvas id="canvas" width="128" height="128" bgcolor='yellow'></canvas>
+</body>
+
+</html>
