[Docs]: How to modify firefoxPrefs with python / pytest.ini about playwright-python HOT 3 CLOSED

Doing the following should work:

import pytest

@pytest.fixture(scope="session")
def browser_type_launch_args(browser_type_launch_args):
    return {
        **browser_type_launch_args,
        "firefox_user_prefs": {
            "pdfjs.disabled": False,
        }
    }

Have you tried that? (if you are using the pytest plugin's page/context/browser fixtures)

from playwright-python.

Thanks! I tried but it does not seem to work.
I think I'm using the right plugin, feel free to correct me 🤔

I'm trying to test a Streamlit component, here is an example of a test: https://github.com/lfoppiano/streamlit-pdf-viewer/blob/integration-tests/tests/test_template_embed.py

Moreover, if I block the execution with a breakpoint when the browser opens (using the --headed execution) and then I check about:config and search for pdf.js, the flag is not set correctly.

I'm wondering, why scope="session"? I thought maybe to use scope='module' instead?

from playwright-python.

@mxschmitt sorry, my bad. This solution works fine.

from playwright-python.