A proxy server allows you to reach a Web site or other Internet location even when direct access is blocked in your country or by your ISP. There are many different kinds of proxies, including:
You can use a Web proxy directly without any configuration by typing in the URL. The HTTP and SOCKS proxies, however, have to be configured in your Web browser.
In Firefox 4 you can change the settings for using a proxy you'll have to open the Options or Preferences window of Firefox. You can find this in the menu, by clicking on the upper left corner of the Window and selecting Options > Options. See below.
Go to the Advanced section and open the Network tab.
Select Settings, click on "Manual proxy configuration" and enter the information of the proxy server you want to use. Please remember that HTTP proxies and SOCKS proxies work differently and have to be entered in the corresponding fields. If there is a colon (:) in your proxy information, that is the separator between the proxy address and the port number. Your screen should look like this:
After you click OK, your configuration will be saved and your Web browser will automatically connect through that proxy on all future connections. If you get an error message such as, "The proxy server is refusing connections" or "Unable to find the proxy server", there is a problem with your proxy configuration. In that case, repeat the steps above and select "No proxy" in the last screen to deactivate the proxy.
FoxyProxy is a freeware add-on for the Firefox Web browser which makes it easy to manage many different proxy servers and change between them. For details about FoxyProxy, visit http://getfoxyproxy.org/.
In Firefox 4 open the Add-ons window. In the pop-up window, type the name of the add-on you want to install (in this case "FoxyProxy") in the search box on the top right and click Enter. In the search results, you will see two different versions of FoxyProxy: Standard and Basic. For a full comparison of the two free editions, visit http://getfoxyproxy.org/downloads.html#editions, but the Basic edition is sufficient for basic circumvention needs. After deciding which edition you want, click Install.
After installation, Firefox should restart and open the Help site of FoxyProxy. You want to enable the FoxyProxy quick-start button on Firefox. Head to the Firefox menu in the upperleft corner and select Options > Add-on bar. If the option is enabled you should see a marker left to the text 'Add-on bar'. Look at the example below.
For FoxyProxy to do its job, it needs to know what proxy settings to use. Open the configuration window by clicking the icon at the bottom right of the Firefox window. The configuration window looks like this:
Click on 'Add New Proxy'. In the following window, enter the proxy details in a similar way to the default Firefox proxy configuration:
Select "Manual Proxy Configuration", enter the host or IP address and the port of your proxy in the appropriate fields. Check "SOCKS proxy?" if applicable, then click OK. You can add more proxies by repeating the steps above.
You can switch among your proxies (or choose not to use a proxy) by right-clicking on the fox icon on the bottom right of your Firefox window:
To select a proxy server, simply left-click on the proxy you want to use.
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