How to Change Proxy Settings in Firefox

By Margaret Worthington

The Mozilla Firefox Web browser allows you to use a proxy to connect to the Internet. Using a proxy changes what IP address other computers on the Internet see when you connect to them, which is handy if you want to appear as though you are in a different state or country. Changing these proxy settings isn't difficult and requires no computer expertise.

Things You'll Need

  • IP address and port of your proxy server

Step 1

Open Firefox, click the "Tools" button in the top menu bar and then click "Options."

Step 2

Click the "Advanced" button and then click the "Settings" button under the "Connection" section.

Step 3

Select the "Manual proxy configuration" option and then enter in the IP address and port for the different protocols list. If your proxy does not support certain protocols, don't enter in the IP address and port number for that protocol and Firefox will automatically use your local network connection to connect through that protocol instead of using your proxy.

Step 4

Click the "OK" button two times and the settings change is applied.