Configuração de Proxy Squid3 para Firefox

Configurar um proxy HTTP para trabalhar com o Mozilla Firefox Browser.

1. Open Firefox Mozilla
2. Click on the Firefox Menu, which is in the top-right corner of the browser window and then press Options.

3. A janela de opções se abre. Clique em Avançado. Ela pode ser encontrada no final da lista do Menu.

4. Escolha a guia Rede e clique no botão Configurações.

5. Uma nova janela aparece. Escolha a seguinte configuração de proxy manual.

6. In the HTTP proxy field enter one of VPN servers addresses. Make sure to use ONLY Torrent/P2P servers marked "YES'. (Click to find our VPN Server List) Also, check the box Use this proxy server for all protocols.
For Port enter 3128.
It is optional to choose the box Do not prompt for authentication if password is saved. If you choose it, then once you save credentials for proxies, the authentication will not prompt again, unless it fails.
Click on OK.

7. When you will try to access a site you will be prompted for the username and password. Enter your Username and Password and press OK.

8. Your Mozilla Firefox configuration is done.
If you want to check whether HTTP proxy really works, go to What is my IP address website. There you will see the IP address of your chosen server.