Try headed mode to avoid youtube bot detection

Author: Tracy-Walker

tests/tabs/test_mute_tabs.py

@@ -1,5 +1,3 @@
-from os import environ
-
 import pytest
 from selenium.webdriver import Firefox
 from selenium.webdriver.common.by import By
@@ -23,12 +21,8 @@ def add_to_prefs_list():
     return [("network.cookie.cookieBehavior", "2")]
 
 
-GHA = environ.get("GITHUB_ACTIONS") == "true"
-
-
-@pytest.mark.unstable(reason="Bug https://bugzilla.mozilla.org/show_bug.cgi?id=1982379")
-@pytest.mark.skipif(GHA, reason="Test unstable in Github Actions")
 @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)