diff --git a/docshell/test/navigation/mochitest.ini b/docshell/test/navigation/mochitest.ini
index 38509b83aedb..35baa39f33b3 100644
--- a/docshell/test/navigation/mochitest.ini
+++ b/docshell/test/navigation/mochitest.ini
@@ -215,3 +215,4 @@ skip-if = !sessionHistoryInParent
 support-files =
   file_ship_beforeunload_fired.html
 skip-if = !sessionHistoryInParent
+[test_open_javascript_noopener.html]
diff --git a/docshell/test/navigation/test_open_javascript_noopener.html b/docshell/test/navigation/test_open_javascript_noopener.html
new file mode 100644
index 000000000000..81a6b70d6185
--- /dev/null
+++ b/docshell/test/navigation/test_open_javascript_noopener.html
@@ -0,0 +1,44 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta charset="utf-8">
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+  </head>
+  <body>
+  <script>
+
+add_task(async function test_open_javascript_noopener() {
+  const topic = "test-javascript-was-run";
+  function jsuri(version) {
+    return `javascript:SpecialPowers.notifyObservers(null, "${topic}", "${version}");window.close()`;
+  }
+
+  let seen = [];
+  function observer(_subject, _topic, data) {
+    info(`got notification ${data}`);
+    seen.push(data);
+  }
+  SpecialPowers.addObserver(observer, topic);
+
+  isDeeply(seen, [], "seen no test notifications");
+  window.open(jsuri("1"));
+
+  // Bounce off the parent process to make sure the JS will have run.
+  await SpecialPowers.spawnChrome([], () => {});
+
+  isDeeply(seen, ["1"], "seen the opener notification");
+
+  window.open(jsuri("2"), "", "noopener");
+
+  // Bounce off the parent process to make sure the JS will have run.
+  await SpecialPowers.spawnChrome([], () => {});
+
+  isDeeply(seen, ["1"], "didn't get a notification from the noopener popup");
+
+  SpecialPowers.removeObserver(observer, topic);
+});
+
+  </script>
+  </body>
+</html>
