It's unlikely that the bundled version wouldn't load, and it's especially unlikely that the page would load but the bundled version would not. Also, if it doesn't load, it should fall back to another monospace font, which is fine.
This prevents an issue with Firefox 80 on macOS that prevents syntax highlighting from working.
Co-authored-by: Aral Balkan <aral@ind.ie> Co-authored-by: Collyn O'Kane <47607823+okaneco@users.noreply.github.com>