diff --git a/test/defaultbrowsercontext-2.spec.ts b/test/defaultbrowsercontext-2.spec.ts
index f9352ebd25..c0ac08b517 100644
--- a/test/defaultbrowsercontext-2.spec.ts
+++ b/test/defaultbrowsercontext-2.spec.ts
@@ -111,7 +111,7 @@ it.slow()('should restore state from userDataDir', async ({browserType, defaultB
   await removeUserDataDir(userDataDir2);
 });
 
-it.slow()('should restore cookies from userDataDir', async ({browserType, defaultBrowserOptions,  server, launchPersistent}) => {
+it.slow().flaky(options.CHROMIUM && WIN)('should restore cookies from userDataDir', async ({browserType, defaultBrowserOptions,  server, launchPersistent}) => {
   const userDataDir = await makeUserDataDir();
   const browserContext = await browserType.launchPersistentContext(userDataDir, defaultBrowserOptions);
   const page = await browserContext.newPage();
diff --git a/test/page-event-crash.spec.ts b/test/page-event-crash.spec.ts
index 17929f0cca..2c023d368e 100644
--- a/test/page-event-crash.spec.ts
+++ b/test/page-event-crash.spec.ts
@@ -32,7 +32,7 @@ it.fail(options.WIRE)('should emit crash event when page crashes', async ({page,
   await new Promise(f => page.on('crash', f));
 });
 
-it.fail(options.WIRE)('should throw on any action after page crashes', async ({page, browserName, toImpl}) => {
+it.fail(options.WIRE).flaky(options.FIREFOX && WIN)('should throw on any action after page crashes', async ({page, browserName, toImpl}) => {
   await page.setContent(`<div>This page should crash</div>`);
   crash(toImpl(page), browserName);
   await page.waitForEvent('crash');
@@ -59,7 +59,7 @@ it.fixme(options.WIRE)('should cancel navigation when page crashes', async ({pag
   expect(error.message).toContain('Navigation failed because page crashed');
 });
 
-it.fixme(options.WIRE)('should be able to close context when page crashes', async ({page, browserName, toImpl}) => {
+it.fixme(options.WIRE).flaky(options.FIREFOX && WIN)('should be able to close context when page crashes', async ({page, browserName, toImpl}) => {
   await page.setContent(`<div>This page should crash</div>`);
   crash(toImpl(page), browserName);
   await page.waitForEvent('crash');
diff --git a/test/permissions.spec.ts b/test/permissions.spec.ts
index ba39636daa..b8a4ba72d1 100644
--- a/test/permissions.spec.ts
+++ b/test/permissions.spec.ts
@@ -98,7 +98,7 @@ describe.skip(options.WEBKIT)('permissions', () => {
     expect(await getPermission(page, 'geolocation')).toBe('prompt');
   });
 
-  it.fail(options.WEBKIT || (options.CHROMIUM && !options.HEADLESS))('should trigger permission onchange', async ({page, server, context}) => {
+  it.fail(options.WEBKIT).fail(options.CHROMIUM && !options.HEADLESS).flaky(options.FIREFOX && LINUX)('should trigger permission onchange', async ({page, server, context}) => {
     // TODO: flaky
     // - Linux: https://github.com/microsoft/playwright/pull/1790/checks?check_run_id=587327883
     // - Win: https://ci.appveyor.com/project/aslushnikov/playwright/builds/32402536
diff --git a/test/screencast.spec.ts b/test/screencast.spec.ts
index 1a9f085426..f667c3bb30 100644
--- a/test/screencast.spec.ts
+++ b/test/screencast.spec.ts
@@ -172,7 +172,7 @@ class VideoPlayer {
   }
 }
 
-it.fixme(options.CHROMIUM)('should capture static page', async ({page, tmpDir, videoPlayer, toImpl}) => {
+it.fixme(options.CHROMIUM).flaky(options.FIREFOX && MAC)('should capture static page', async ({page, tmpDir, videoPlayer, toImpl}) => {
   if (!toImpl)
     return;
   const videoFile = path.join(tmpDir, 'v.webm');