How to setup a proxy in the Firefox browser

Setup

1

Open Firefox Settings

Launch Firefox, click on the menu button (three lines at the top right), and select Settings.Firefox Menu
2

Navigate to Network Settings

Scroll to the bottom of the General tab and click on Settings… under the Network Settings section.Firefox Network Settings
3

Configure Manual Proxy Settings

In the connection settings dialog:
  • Select Manual proxy configuration
  • Enter your proxy details:
    • HTTP Proxy: dc.ipnproxy.com
    • Port: 10080
  • Check Also use this proxy for HTTPS
  • Optional: Add credentials when prompted
Manual Proxy Input
4

Verify Your IP

Visit https://ipnproxy.com/ip-lookup to check if the proxy is active.
If the displayed IP matches your assigned proxy, the setup is complete.
IP Verification in Firefox

Residential Proxies

  • Host: residential.ipnproxy.com
  • Port: 823
  • Format:
bash http http://username:[email protected]:823

Datacenter Proxies

  • Host: dc.ipnproxy.com
  • Port: 10080
  • Format:
bash http http://username:[email protected]:10080

Premium Mobile Proxies

  • IP: {IP_ADDRESS}
  • Port: {PORT}
  • Username: {PROXY_USERNAME}
  • Password: {PROXY_PASSWORD}
  • Format:
bash http http://{username}:{password}@{IP}:{PORT} 
bash socks5 http://{username}:{password}@{IP}:{PORT}

Mobile Proxies

  • IP: {IP_ADDRESS}
  • Port: {PORT} - Format:
bash http http://{IP_ADDRESS}:{PORT}
bash socks5 socks5://{IP_ADDRESS}:{PORT}
Use the correct proxy format based on the browser and device you’re configuring. Improper port/protocol combinations can prevent connections.
Firefox handles proxy settings internally, so changes apply only to Firefox and not the entire system.