def METHOD_NAME(file_name):
    if 'brave' in file_name.lower():
        return 'Brave'
    elif 'microsoft' in file_name.lower():
        return 'Edge'
    elif 'opera' in file_name.lower():
        return 'Opera'
    elif 'android.chrome' in file_name.lower():
        return 'Chrome'
    else:
        return 'Unknown'