How to use proxy with Mozilla Firefox
In Firefox, go to Tools -> Options
![](/assets/images/proxy_articles/proxy_firefox_select_options.png)
Once the Firefox Options window is open, select Advanced -> Network and then click Settings
![](/assets/images/proxy_articles/proxy_firefox_options.png)
Inside the Connections Settings window, check the checkbox that says Manual proxy configuration
![](/assets/images/proxy_articles/proxy_firefox_connection_settings.png)