diff --git a/pytest-playwright-asyncio/pytest_playwright_asyncio/_base_url_fallback.py b/pytest-playwright-asyncio/pytest_playwright_asyncio/_base_url_fallback.py
new file mode 100644
index 0000000..e14d201
--- /dev/null
+++ b/pytest-playwright-asyncio/pytest_playwright_asyncio/_base_url_fallback.py
@@ -0,0 +1,29 @@
+# Copyright (c) Microsoft Corporation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Provides the base_url fixture when pytest-base-url is not in use, see
+# pytest_load_initial_conftests in pytest_playwright.py. It is a module rather
+# than a class instance, as pytest 9.2 deprecates session-scoped fixtures defined
+# as instance methods: https://github.com/microsoft/playwright-pytest/issues/341
+
+from typing import Any, Optional
+
+import pytest
+
+
+@pytest.fixture(scope="session")
+def base_url(pytestconfig: Any) -> Optional[str]:
+    return (
+        pytestconfig.getoption("--base-url") or pytestconfig.getini("base_url") or None
+    )
diff --git a/pytest-playwright-asyncio/pytest_playwright_asyncio/pytest_playwright.py b/pytest-playwright-asyncio/pytest_playwright_asyncio/pytest_playwright.py
index f1ebce0..ba9ccd8 100644
--- a/pytest-playwright-asyncio/pytest_playwright_asyncio/pytest_playwright.py
+++ b/pytest-playwright-asyncio/pytest_playwright_asyncio/pytest_playwright.py
@@ -74,6 +74,8 @@
 import traceback
 import urllib.parse
 
+from pytest_playwright_asyncio import _base_url_fallback
+
 
 @pytest.fixture(scope="session")
 def _pw_artifacts_folder(
@@ -818,7 +820,7 @@ def pytest_load_initial_conftests(
         default=os.getenv("PYTEST_BASE_URL", None),
         help="base url for the application under test.",
     )
-    early_config.pluginmanager.register(_BaseUrlFallback(), "playwright-base-url")
+    early_config.pluginmanager.register(_base_url_fallback, "playwright-base-url")
 
 
 def _is_pytest_base_url_loaded(pluginmanager: pytest.PytestPluginManager) -> bool:
@@ -828,17 +830,6 @@ def _is_pytest_base_url_loaded(pluginmanager: pytest.PytestPluginManager) -> boo
     return module is not None and pluginmanager.is_registered(module)
 
 
-class _BaseUrlFallback:
-    # Provides the base_url fixture when pytest-base-url is not in use.
-    @pytest.fixture(scope="session")
-    def base_url(self, pytestconfig: Any) -> Optional[str]:
-        return (
-            pytestconfig.getoption("--base-url")
-            or pytestconfig.getini("base_url")
-            or None
-        )
-
-
 class ArtifactsRecorder:
     def __init__(
         self,
diff --git a/pytest-playwright/pytest_playwright/_base_url_fallback.py b/pytest-playwright/pytest_playwright/_base_url_fallback.py
new file mode 100644
index 0000000..e14d201
--- /dev/null
+++ b/pytest-playwright/pytest_playwright/_base_url_fallback.py
@@ -0,0 +1,29 @@
+# Copyright (c) Microsoft Corporation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Provides the base_url fixture when pytest-base-url is not in use, see
+# pytest_load_initial_conftests in pytest_playwright.py. It is a module rather
+# than a class instance, as pytest 9.2 deprecates session-scoped fixtures defined
+# as instance methods: https://github.com/microsoft/playwright-pytest/issues/341
+
+from typing import Any, Optional
+
+import pytest
+
+
+@pytest.fixture(scope="session")
+def base_url(pytestconfig: Any) -> Optional[str]:
+    return (
+        pytestconfig.getoption("--base-url") or pytestconfig.getini("base_url") or None
+    )
diff --git a/pytest-playwright/pytest_playwright/pytest_playwright.py b/pytest-playwright/pytest_playwright/pytest_playwright.py
index fce034a..aeb22fa 100644
--- a/pytest-playwright/pytest_playwright/pytest_playwright.py
+++ b/pytest-playwright/pytest_playwright/pytest_playwright.py
@@ -71,6 +71,8 @@
 import traceback
 import urllib.parse
 
+from pytest_playwright import _base_url_fallback
+
 
 @pytest.fixture(scope="session")
 def _pw_artifacts_folder(
@@ -815,7 +817,7 @@ def pytest_load_initial_conftests(
         default=os.getenv("PYTEST_BASE_URL", None),
         help="base url for the application under test.",
     )
-    early_config.pluginmanager.register(_BaseUrlFallback(), "playwright-base-url")
+    early_config.pluginmanager.register(_base_url_fallback, "playwright-base-url")
 
 
 def _is_pytest_base_url_loaded(pluginmanager: pytest.PytestPluginManager) -> bool:
@@ -825,17 +827,6 @@ def _is_pytest_base_url_loaded(pluginmanager: pytest.PytestPluginManager) -> boo
     return module is not None and pluginmanager.is_registered(module)
 
 
-class _BaseUrlFallback:
-    # Provides the base_url fixture when pytest-base-url is not in use.
-    @pytest.fixture(scope="session")
-    def base_url(self, pytestconfig: Any) -> Optional[str]:
-        return (
-            pytestconfig.getoption("--base-url")
-            or pytestconfig.getini("base_url")
-            or None
-        )
-
-
 class ArtifactsRecorder:
     def __init__(
         self,
diff --git a/tests/test_asyncio.py b/tests/test_asyncio.py
index d34e3ea..4175355 100644
--- a/tests/test_asyncio.py
+++ b/tests/test_asyncio.py
@@ -479,7 +479,9 @@ async def test_base_url(page, base_url):
     """
     )
     result = testdir.runpytest(*args)
-    result.assert_outcomes(passed=1)
+    # The fallback fixture must not trip pytest's deprecations, see
+    # https://github.com/microsoft/playwright-pytest/issues/341
+    result.assert_outcomes(passed=1, warnings=0)
 
 
 def test_base_url_without_plugin_autoload(
diff --git a/tests/test_sync.py b/tests/test_sync.py
index 9528fc5..10f73e4 100644
--- a/tests/test_sync.py
+++ b/tests/test_sync.py
@@ -492,7 +492,9 @@ def test_base_url(page, base_url):
     """
     )
     result = testdir.runpytest(*args)
-    result.assert_outcomes(passed=1)
+    # The fallback fixture must not trip pytest's deprecations, see
+    # https://github.com/microsoft/playwright-pytest/issues/341
+    result.assert_outcomes(passed=1, warnings=0)
 
 
 def test_base_url_without_plugin_autoload(