diff --git a/test/page.spec.js b/test/page.spec.js
index 43d53f26c7..2eb0dd2eec 100644
--- a/test/page.spec.js
+++ b/test/page.spec.js
@@ -739,8 +739,8 @@ describe('Page.addScriptTag', function() {
     expect(await page.evaluate(() => __injected)).toBe(35);
   });
 
-  // Firefox fires onload for blocked script before it issues the CSP console error.
-  it('should throw when added with content to the CSP page', async({page, server}) => {
+  it.fail(FFOX && WIN)('should throw when added with content to the CSP page', async({page, server}) => {
+    // Firefox fires onload for blocked script before it issues the CSP console error.
     await page.goto(server.PREFIX + '/csp.html');
     let error = null;
     await page.addScriptTag({ content: 'window.__injected = 35;' }).catch(e => error = e);