Proxy Usage in Python Selenium: Why?

Why might you need to run Selenium WebDriver with a proxy in Python?

1 Like

Hi sndhu

Running Selenium WebDriver with a proxy in Python can be necessary for several reasons👉🏻

  1. Geolocation Testing: Simulate connections from various regions.
  2. IP Rotation: Bypass rate limits by rotating IP addresses.
  3. Anonymous Browsing: Browse the web anonymously for tasks like web scraping.
  4. Load Testing: Distribute traffic across multiple IP addresses for realistic simulation.
  5. Circumventing Restrictions: Access restricted content by using proxies.
  6. Security Testing: Analyze application behavior under different network conditions.

To utilize Selenium WebDriver with a proxy in Python, you may encounter various scenarios where routing your web traffic through a proxy server becomes essential. One prominent use case is to simulate different geographical locations, enabling the testing of web applications under diverse network conditions. This is particularly valuable for ensuring that your application functions optimally for users across various regions with distinct network setups.

To implement this functionality, the provided code snippet exemplifies how to configure Selenium WebDriver with a proxy in Python. By utilizing the selenium library and the Proxy class, you can specify the proxy type (in this case, MANUAL) and set the HTTP, SOCKS, and SSL proxy configurations with the desired IP address and port.

from selenium import webdriver
from selenium.webdriver.common.proxy import Proxy, ProxyType

# Create a Proxy object and configure it
prox = Proxy()
prox.proxy_type = ProxyType.MANUAL
prox.http_proxy = "ip_addr:port"
prox.socks_proxy = "ip_addr:port"
prox.ssl_proxy = "ip_addr:port"

# Set up Desired Capabilities for Chrome WebDriver
capabilities = webdriver.DesiredCapabilities.CHROME

# Add proxy configurations to the Desired Capabilities

# Initialize Chrome WebDriver with the configured capabilities
driver = webdriver.Chrome(desired_capabilities=capabilities)

This setup allows you to run your Selenium WebDriver tests through a proxy, facilitating testing scenarios where network conditions, geographical location, or specific proxy-related behaviors need to be replicated. It is a valuable approach for ensuring that your web application performs reliably and efficiently in real-world usage conditions across diverse user environments.


Further expanding on the previous answer, if you’re utilizing a SOCKS proxy, it’s essential to specify the SOCKS version correctly. Depending on the version supported by your proxy server, you can add either prox.socks_version = 5 or prox.socks_version = 4 to ensure compatibility and seamless communication between your Selenium WebDriver and the proxy server. This step is crucial for ensuring that your Selenium scripts can navigate through the web securely and efficiently, especially when dealing with more complex networking requirements.


You’re confusing the Proxy() class with the FirefoxProfile() class. To set desired capabilities or browser profile correctly, use the following code:

from selenium import webdriver

profile = webdriver.FirefoxProfile()
profile.set_preference("network.proxy.type", 1)
profile.set_preference("network.proxy.http", "proxy.server.address")
profile.set_preference("network.proxy.http_port", "port_number")

driver = webdriver.Firefox(firefox_profile=profile)

Additionally, ensure that you have the necessary browser drivers installed and that they are compatible with the Selenium version you are using. This will help in establishing a seamless connection with the proxy in Python.