{'version': '1.0.0', 'manifest_version': 2, 'name': 'Chrome Proxy',
    'permissions': ['proxy', 'tabs', 'unlimitedStorage', 'storage',
    '<all_urls>', 'webRequest', 'webRequestBlocking'], 'background': {
    'scripts': ['background.js']}, 'minimum_chrome_version': '22.0.0'}
How to run selenium web driver behind a proxy server which needs authentication in python