Firefox Proxy Setup
Mozilla Firefox has built-in proxy settings that are independent of system settings. This makes it convenient for working with proxies.
Quick Setup
- Open Settings (Menu → Settings)
- Scroll to Network Settings
- Click Settings...
Configuration Types
Manual Setup
For HTTP/HTTPS proxy:
- HTTP Proxy: proxy.example.com
- Port: 8080
- ☑️ Use this proxy for all protocols
For SOCKS5:
- SOCKS Host: proxy.example.com
- Port: 1080
- ○ SOCKS v5
Automatic Configuration (PAC)
Specify auto-configuration file URL:
http://example.com/proxy.pac
Setup with Authentication
Firefox will automatically request login and password on first connection. For automatic authentication:
- Open
about:config - Find
network.proxy.socks_remote_dns - Set to
true
Testing
After setup, verify IP:
1. Open httpbin.org/ip
2. Ensure proxy IP is shown
Proxy Extensions
For convenient proxy switching, use extensions:
- FoxyProxy — quick switching
- Proxy SwitchyOmega — domain rules
Reset Settings
To disable proxy:
1. Return to Network Settings
2. Select No proxy
3. Click OK
Troubleshooting
Proxy not working:
- Check address and port correctness
- Ensure proxy is online
- Verify login/password
Slow loading:
- Try another server
- Check proxy speed