1 files changed, 4 insertions, 0 deletions
diff --git a/browser/base/content/test/about/browser_aboutNetError_xfo_iframe.js b/browser/base/content/test/about/browser_aboutNetError_xfo_iframe.js
index ae4d5c22a2..43a3fd0e2a 100644
--- a/browser/base/content/test/about/browser_aboutNetError_xfo_iframe.js
+++ b/browser/base/content/test/about/browser_aboutNetError_xfo_iframe.js
@@ -8,6 +8,10 @@ const BLOCKED_PAGE =
   "http://example.org:8000/browser/browser/base/content/test/about/xfo_iframe.sjs";
 
 add_task(async function test_xfo_iframe() {
+  await SpecialPowers.pushPrefEnv({
+    set: [["security.xfocsp.hideOpenInNewWindow", false]],
+  });
+
   let { iframePageTab, blockedPageTab } = await setupPage(
     "iframe_page_xfo.html",
     BLOCKED_PAGE