How to Use Mobile Proxies on a PC for Facebook

Question: How to use mobile proxies how to use and how to set up mobile proxies on PC safely for Facebook?

Answer: Mobile proxies supply carrier IPs and are useful for reducing blocks and emulating mobile traffic. On a PC you typically get a mobile IP via USB tethering (USB modem/phone), run a local proxy server (e.g. 3Proxy) and prevent WebRTC leaks in your browser. Below are practical steps.

1. USB-modem (USB tethering)

Connect your phone or a USB modem to the PC using USB tethering to get a mobile network interface. Verify that the OS shows the new network adapter and that your default route goes through the mobile connection when tethered. This gives you a real mobile IP for all PC traffic.

Pros: simplicity and real carrier IP. Cons: limited number of IPs (you need multiple devices or paid mobile proxy providers for rotation).

2. 3Proxy config

Install 3Proxy on your PC (or on an internal server) and bind it to the mobile interface to expose a local SOCKS5/HTTP proxy. Basic workflow:

  • Install 3Proxy and create a config file.
  • Set `bind` to the mobile interface and define a port (e.g. 1080), enable user:pass authentication.
  • Start 3Proxy and test with `curl --proxy socks5://user:pass@127.0.0.1:1080 https://ifconfig.me` to confirm the exit IP.

Security tips: always enable authentication and IP restrictions. For rotating IPs run multiple 3Proxy instances on different devices or interfaces.

3. WebRTC-leak fix

Browsers can leak your real IP via WebRTC even when using a proxy. To prevent leaks:

  • Disable WebRTC in Firefox (`about:config` → `media.peerconnection.enabled=false`).
  • Use WebRTC blocking extensions in Chrome or use a hardened browser build with WebRTC disabled.
  • Run leak tests (WebRTC leak check / whatismyip) and ensure only the proxy IP is visible.

Note: disabling WebRTC can break real-time features (video/audio). Only disable if your workflows don’t need them.

Practical tips: prefer SOCKS5 for session work, combine 3Proxy with strong credentials, and always verify each browser/profile before running Facebook campaigns. For scale, use multiple SIMs/modems or a commercial mobile proxy provider with API access to automate rotation. Regularly check for WebRTC leaks to avoid accidental disclosure of your real IP.