Try w3schools sample test video

Author: Tracy-Walker

tests/tabs/conftest.py

@@ -21,4 +21,5 @@ def add_to_prefs_list():
 
 @pytest.fixture()
 def video_url():
-    return "https://www.youtube.com/watch?v=mAia0v3ojzw"
+    return "https://www.w3schools.com/html/mov_bbb.mp4"
+    # return "https://www.youtube.com/watch?v=mAia0v3ojzw"

tests/tabs/test_mute_tabs.py

@@ -1,6 +1,5 @@
 import pytest
 from selenium.webdriver import Firefox
-from selenium.webdriver.common.by import By
 from selenium.webdriver.support import expected_conditions as EC
 
 from modules.browser_object import TabBar
@@ -18,27 +17,15 @@ def test_case():
 
 @pytest.fixture()
 def add_to_prefs_list():
-    return [
-        ("network.cookie.cookieBehavior", "2"),
-        ("dom.webdriver.enabled", False),
-        ("useAutomationExtension", False),
-        (
-            "general.useragent.override",
-            "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:142.0) Gecko/20100101 Firefox/142.0",
-        ),
-    ]
+    return [("network.cookie.cookieBehavior", "2")]
 
 
 @pytest.mark.audio
-@pytest.mark.headed
 def test_mute_unmute_tab(screenshot, driver: Firefox, video_url: str):
     """C134719, test that tabs can be muted and unmuted"""
     tabs = TabBar(driver)
     driver.get(video_url)
-    tabs.expect(EC.title_contains("Top 10"))
-
-    play_button = driver.find_element(By.CSS_SELECTOR, PLAY_BUTTON_SELECTOR)
-    play_button.click()
+    tabs.expect(EC.title_contains("mov_bbb.mp4"))
 
     with driver.context(driver.CONTEXT_CHROME):
         tabs.expect_tab_sound_status(1, tabs.MEDIA_STATUS.PLAYING)