diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 95658467507..7aaf95781ac 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -193,6 +193,16 @@ jobs:
             xvfb: true
             node: 18
             suite: firefox-headless
+          - name: firefox-headful
+            machine: ubuntu-latest
+            xvfb: true
+            node: 16
+            suite: firefox-headful
+          - name: firefox-headful
+            machine: ubuntu-latest
+            xvfb: true
+            node: 18
+            suite: firefox-headful
           - name: firefox-bidi
             machine: ubuntu-latest
             xvfb: true
diff --git a/package.json b/package.json
index 4671a414c63..21f21b445d4 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,9 @@
     "test": "cross-env PUPPETEER_DEFERRED_PROMISE_DEBUG_TIMEOUT=20000 node utils/mochaRunner/lib/main.js",
     "test:types": "tsd",
     "test:install": "scripts/test-install.sh",
-    "test:firefox": "npm run test -- --test-suite firefox-headless",
+    "test:firefox": "run-s test:firefox:*",
+    "test:firefox:headless": "npm run test -- --test-suite firefox-headless",
+    "test:firefox:headful": "npm run test -- --test-suite firefox-headful",
     "test:chrome": "run-s test:chrome:*",
     "test:chrome:headless": "npm run test -- --test-suite chrome-headless",
     "test:chrome:headless-chrome": "npm run test -- --test-suite chrome-new-headless",
diff --git a/test/TestExpectations.json b/test/TestExpectations.json
index e452e995dbe..03e6a979835 100644
--- a/test/TestExpectations.json
+++ b/test/TestExpectations.json
@@ -170,43 +170,43 @@
   {
     "testIdPattern": "[elementhandle.spec] ElementHandle specs ElementHandle.boundingBox should handle nested frames",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[elementhandle.spec] ElementHandle specs ElementHandle.boundingBox should handle nested frames",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[elementhandle.spec] ElementHandle specs ElementHandle.boundingBox should return null for invisible elements",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[elementhandle.spec] ElementHandle specs ElementHandle.boundingBox should return null for invisible elements",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[elementhandle.spec] ElementHandle specs ElementHandle.boundingBox should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[elementhandle.spec] ElementHandle specs ElementHandle.boxModel should return null for invisible elements",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[elementhandle.spec] ElementHandle specs ElementHandle.boxModel should return null for invisible elements",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -230,13 +230,13 @@
   {
     "testIdPattern": "[emulation.spec] Emulation Page.emulateCPUThrottling should change the CPU throttling rate successfully",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[emulation.spec] Emulation Page.emulateCPUThrottling should change the CPU throttling rate successfully",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -254,49 +254,49 @@
   {
     "testIdPattern": "[emulation.spec] Emulation Page.emulateNetworkConditions should change navigator.connection.effectiveType",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[emulation.spec] Emulation Page.emulateNetworkConditions should change navigator.connection.effectiveType",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[emulation.spec] Emulation Page.emulateTimezone should throw for invalid timezone IDs",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[emulation.spec] Emulation Page.emulateTimezone should throw for invalid timezone IDs",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[emulation.spec] Emulation Page.emulateTimezone should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[emulation.spec] Emulation Page.emulateTimezone should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[emulation.spec] Emulation Page.emulateVisionDeficiency should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[emulation.spec] Emulation Page.emulateVisionDeficiency should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -368,25 +368,25 @@
   {
     "testIdPattern": "[evaluation.spec] Evaluation specs Page.evaluateOnNewDocument should evaluate before anything else on the page",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[evaluation.spec] Evaluation specs Page.evaluateOnNewDocument should evaluate before anything else on the page",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[evaluation.spec] Evaluation specs Page.evaluateOnNewDocument should work with CSP",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[evaluation.spec] Evaluation specs Page.evaluateOnNewDocument should work with CSP",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -398,13 +398,13 @@
   {
     "testIdPattern": "[fixtures.spec] Fixtures dumpio option should work with pipe option",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[fixtures.spec] Fixtures dumpio option should work with pipe option",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -470,13 +470,13 @@
   {
     "testIdPattern": "[idle_override.spec] Emulate idle state changing idle state emulation causes change of the IdleDetector state",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[idle_override.spec] Emulate idle state changing idle state emulation causes change of the IdleDetector state",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -494,13 +494,13 @@
   {
     "testIdPattern": "[ignorehttpserrors.spec] ignoreHTTPSErrors Response.securityDetails should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[ignorehttpserrors.spec] ignoreHTTPSErrors Response.securityDetails should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -518,7 +518,7 @@
   {
     "testIdPattern": "[ignorehttpserrors.spec] ignoreHTTPSErrors Response.securityDetails Network redirects should report SecurityDetails",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["PASS", "FAIL"]
   },
   {
@@ -536,13 +536,13 @@
   {
     "testIdPattern": "[jshandle.spec] JSHandle JSHandle.jsonValue should not work with dates",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[jshandle.spec] JSHandle JSHandle.jsonValue should not work with dates",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -659,6 +659,12 @@
     "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
+  {
+    "testIdPattern": "[launcher.spec] Launcher specs Puppeteer Puppeteer.launch should filter out ignored default argument in Firefox",
+    "platforms": ["linux"],
+    "parameters": ["firefox", "headful"],
+    "expectations": ["FAIL"]
+  },
   {
     "testIdPattern": "[launcher.spec] Launcher specs Puppeteer Puppeteer.launch should have custom URL when launching browser",
     "platforms": ["darwin", "linux", "win32"],
@@ -710,85 +716,85 @@
   {
     "testIdPattern": "[navigation.spec] navigation Frame.goto should navigate subframes",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.goto should navigate subframes",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.goto should reject when frame detaches",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.goto should reject when frame detaches",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.goto should return matching responses",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.goto should return matching responses",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.goto should return matching responses",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.goto should return matching responses",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.goto should return matching responses",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.goto should return matching responses",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.waitForNavigation should fail when frame detaches",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.waitForNavigation should fail when frame detaches",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.waitForNavigation should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[navigation.spec] navigation Frame.waitForNavigation should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -890,91 +896,91 @@
   {
     "testIdPattern": "[network.spec] network \"after each\" hook for \"should wait until response completes\"",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Network Events Page.Events.Request",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["PASS", "FAIL"]
   },
   {
     "testIdPattern": "[network.spec] network Network Events Page.Events.Response",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["PASS", "FAIL"]
   },
   {
     "testIdPattern": "[network.spec] network Network Events Page.Events.RequestFailed",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Network Events Page.Events.RequestFinished",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Network Events Page.Events.RequestServedFromCache",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Network Events should fire events in proper order",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Network Events should support redirects",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Page.authenticate should allow disable authentication",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Page.authenticate should fail if wrong credentials",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Page.authenticate should not disable caching",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Page.authenticate should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Page.setExtraHTTPHeaders should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network raw network headers Cross-origin set-cookie",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["FAIL", "PASS"]
   },
   {
     "testIdPattern": "[network.spec] network raw network headers Same-origin set-cookie subresource",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -998,13 +1004,13 @@
   {
     "testIdPattern": "[network.spec] network Request.initiator should return the initiator",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Request.initiator should return the initiator",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -1028,115 +1034,115 @@
   {
     "testIdPattern": "[network.spec] network Request.postData should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Request.postData should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.buffer should throw if the response does not have a body",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.buffer should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.buffer should work with compression",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.fromCache should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.fromCache should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.fromServiceWorker Response.fromServiceWorker",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.fromServiceWorker Response.fromServiceWorker",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.json should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.text should return uncompressed text",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.text should return uncompressed text",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.text should throw when requesting body of redirected response",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.text should throw when requesting body of redirected response",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.text should wait until response completes",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.text should wait until response completes",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.text should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.text should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[network.spec] network Response.timing returns timing information",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -1148,13 +1154,13 @@
   {
     "testIdPattern": "[oopif.spec] OOPIF \"after all\" hook for \"should keep track of a frames OOP state\"",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[oopif.spec] OOPIF \"before all\" hook for \"should keep track of a frames OOP state\"",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -1184,7 +1190,7 @@
   {
     "testIdPattern": "[page.spec] Page \"before each\" hook for \"should return the page title\"",
     "platforms": ["darwin", "linux", "win32"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["PASS", "FAIL"]
   },
   {
@@ -1268,313 +1274,313 @@
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should have location and stack trace for console API calls",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should have location and stack trace for console API calls",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should have location when fetch fails",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should have location when fetch fails",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should not fail for window object",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should not fail for window object",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should trigger correct Log",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should trigger correct Log",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should work for different console API calls",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Console should work for different console API calls",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.error should throw when page crashes",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.error should throw when page crashes",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work with clicking target=_blank and rel=noopener",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work with clicking target=_blank and rel=noopener",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work with clicking target=_blank and with rel=opener",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work with clicking target=_blank and with rel=opener",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work with clicking target=_blank and without rel=opener",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work with clicking target=_blank and without rel=opener",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work with fake-clicking target=_blank and rel=noopener",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work with fake-clicking target=_blank and rel=noopener",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work with noopener",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.Events.Popup should work with noopener",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should await returned promise",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should await returned promise",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should be callable from-inside evaluateOnNewDocument",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should be callable from-inside evaluateOnNewDocument",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should fallback to default export when passed a module object",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should fallback to default export when passed a module object",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should not throw when frames detach",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should not throw when frames detach",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should support throwing \"null\"",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should support throwing \"null\"",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should survive navigation",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should survive navigation",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should throw exception in page context",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should throw exception in page context",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should work on frames",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should work on frames",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should work on frames before navigation",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should work on frames before navigation",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should work with complex objects",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.exposeFunction should work with complex objects",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.metrics metrics event fired on console.timeStamp",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.metrics metrics event fired on console.timeStamp",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.metrics should get metrics from a page",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.metrics should get metrics from a page",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -1586,61 +1592,61 @@
   {
     "testIdPattern": "[page.spec] Page Page.setBypassCSP should bypass after cross-process navigation",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setBypassCSP should bypass after cross-process navigation",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setBypassCSP should bypass CSP header",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setBypassCSP should bypass CSP header",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setBypassCSP should bypass CSP in iframes as well",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setBypassCSP should bypass CSP in iframes as well",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setBypassCSP should bypass CSP meta tag",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setBypassCSP should bypass CSP meta tag",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setCacheEnabled should enable or disable the cache based on the state passed",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setCacheEnabled should enable or disable the cache based on the state passed",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
@@ -1658,37 +1664,37 @@
   {
     "testIdPattern": "[page.spec] Page Page.setJavaScriptEnabled should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setJavaScriptEnabled should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setOfflineMode should emulate navigator.onLine",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setOfflineMode should emulate navigator.onLine",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setOfflineMode should work",
     "platforms": ["darwin"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
     "testIdPattern": "[page.spec] Page Page.setOfflineMode should work",
     "platforms": ["linux"],
-    "parameters": ["firefox", "headless"],
+    "parameters": ["firefox"],
     "expectations": ["SKIP"]
   },
   {
diff --git a/test/TestSuites.json b/test/TestSuites.json
index d0c208a661d..67d81d6b335 100644
--- a/test/TestSuites.json
+++ b/test/TestSuites.json
@@ -24,6 +24,12 @@
       "parameters": ["firefox", "headless"],
       "expectedLineCoverage": 80
     },
+    {
+      "id": "firefox-headful",
+      "platforms": ["linux"],
+      "parameters": ["firefox", "headful"],
+      "expectedLineCoverage": 80
+    },
     {
       "id": "firefox-bidi",
       "platforms": ["linux"],