diff --git a/test/emulation.spec.js b/test/emulation.spec.js
index 4fcbf7aa51..cac8194649 100644
--- a/test/emulation.spec.js
+++ b/test/emulation.spec.js
@@ -237,7 +237,7 @@ module.exports.describe = function({testRunner, expect, playwright, headless, FF
       await page.emulateMedia({ colorScheme: 'bad' }).catch(e => error = e);
       expect(error.message).toBe('Unsupported color scheme: bad');
     });
-    it.fail(FFOX)('should work during navigation', async({page, server}) => {
+    it('should work during navigation', async({page, server}) => {
       await page.emulateMedia({ colorScheme: 'light' });
       const navigated = page.goto(server.EMPTY_PAGE);
       for (let i = 0; i < 9; i++) {
diff --git a/test/headful.spec.js b/test/headful.spec.js
index bb9a07b248..466bc12de8 100644
--- a/test/headful.spec.js
+++ b/test/headful.spec.js
@@ -40,8 +40,8 @@ module.exports.describe = function({testRunner, expect, browserType, defaultBrow
       await browserContext.close();
       await removeUserDataDir(userDataDir);
     });
-    // see https://github.com/microsoft/playwright/issues/717
-    it.slow().fail((WIN && CHROMIUM) || FFOX)('headless should be able to read cookies written by headful', async({server}) => {
+    it.slow().fail(WIN && CHROMIUM)('headless should be able to read cookies written by headful', async({server}) => {
+      // see https://github.com/microsoft/playwright/issues/717
       const userDataDir = await makeUserDataDir();
       // Write a cookie in headful chrome
       const headfulContext = await browserType.launchPersistentContext(userDataDir, headfulOptions);
diff --git a/test/launcher.spec.js b/test/launcher.spec.js
index 739b812814..574782a030 100644
--- a/test/launcher.spec.js
+++ b/test/launcher.spec.js
@@ -291,7 +291,7 @@ module.exports.describe = function({testRunner, expect, defaultBrowserOptions, p
       // This might throw. See https://github.com/GoogleChrome/puppeteer/issues/2778
       await removeUserDataDir(userDataDir);
     });
-    it.slow().fail(FFOX)('userDataDir option should restore state', async({server}) => {
+    it.slow()('userDataDir option should restore state', async({server}) => {
       const userDataDir = await makeUserDataDir();
       const browserContext = await browserType.launchPersistentContext(userDataDir, defaultBrowserOptions);
       const page = await browserContext.newPage();
diff --git a/test/page.spec.js b/test/page.spec.js
index 339b1c14cc..f8147f4d69 100644
--- a/test/page.spec.js
+++ b/test/page.spec.js
@@ -224,7 +224,7 @@ module.exports.describe = function({testRunner, expect, headless, playwright, FF
       });
     });
     // @see https://github.com/GoogleChrome/puppeteer/issues/3865
-    it.fail(FFOX)('should not throw when there are console messages in detached iframes', async({page, server}) => {
+    it('should not throw when there are console messages in detached iframes', async({page, server}) => {
       await page.goto(server.EMPTY_PAGE);
       const [popup] = await Promise.all([
         page.waitForEvent('popup'),
diff --git a/test/popup.spec.js b/test/popup.spec.js
index dddc567afd..349dae590c 100644
--- a/test/popup.spec.js
+++ b/test/popup.spec.js
@@ -87,7 +87,7 @@ module.exports.describe = function({testRunner, expect, playwright, CHROMIUM, WE
       await context.close();
       expect(request.headers['foo']).toBe('bar');
     });
-    it.fail(FFOX)('should inherit offline from browser context', async function({browser, server}) {
+    it('should inherit offline from browser context', async function({browser, server}) {
       const context = await browser.newContext();
       const page = await context.newPage();
       await page.goto(server.EMPTY_PAGE);