AnonymoX is a Firefox browser add-on that enables you to change your computer's Proxy address for easy access to blocked websites. If you encounter a blocked website, you can use the AnonymoX add-on on Firefox to access it.
Here's how to use AnonymoX to access blocked websites on Firefox:
Step 1: Install the AnonymoX add-on for the Firefox browser.
To begin, open your Firefox browser and go to the following link: https://addons.mozilla.org/vi/firefox/addon/anonymox/. Then, click on Add to Firefox to add the anonymoX add-on to Firefox.

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Next, restart your Firefox browser.
Step 2: On the Firefox interface, you'll see the anonymoX icon. Click on the X icon to configure anonymoX:

Settings for: used to select any website to enable/disable anonymoX.
Change identity: alter your IP address; click this button to switch IPs between countries worldwide. Alternatively, you can directly select in the Indentities section.
Country: anonymoX offers IPs from countries like the US, Netherlands, Austria, UK, and many more under the More section; you can select all by choosing All.
Attributes: premium service with faster speeds; if you're using anonymoX Premium, utilize this feature; otherwise, it's not available for free users.
Additionally, you can select More to utilize other features of anonymoX such as: Clear Cookies (delete cookies of one or all accessed websites), User Agent (browse the web based on a different web browser identity), ...
Step 3: To access blocked websites, open the blocked website and click on the anonymoX add-on icon, select Settings for the blocked website's name, and check the Active box for the add-on to change to a different Proxy address. This way, you'll be able to access the blocked website.

Now you can access blocked websites with anonymoX on Firefox. Wishing you success!