Would you like to learn how to use a group policy to configure the Mozilla Firefox browser? In this tutorial, we will show you how to create a group policy to perform the Mozilla Firefox proxy configuration on all computers in the domain.

• Windows 2012 R2
• Windows 2016
• Windows 2019
• Windows 10
• Windows 7

Equipment list

The following section presents the list of equipment used to create this tutorial.

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Tutorial GPO - Proxy configuration on Mozilla Firefox

Download the latest version of the Mozilla policy template.

GPO - Firefox policy template

Extract the ZIP file.

In our example, all files were placed on the root of a directory named DOWNLOADS.

Gpo - Firefox template

Access the directory named WINDOWS and copy the file ADMX files to the Policy definitions directory.

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Access the correct language subdirectory.

Copy the ADML files to the correct language directory inside the Policy definitions.

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On the domain controller, open the group policy management tool.

Windows 2012 - Group Policy Management

Create a new group policy.

Windows 2012 - Group Policy Objects

Enter a name for the new group policy.

Windows - Add GPO

In our example, the new GPO was named: MY-GPO.

On the Group Policy Management screen, expand the folder named Group Policy Objects.

Right-click your new Group Policy Object and select the Edit option.

Windows - Edit GPO

On the group policy editor screen, expand the Computer configuration folder and locate the following item.

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Access the folder named Home page.

GPO - Firefox configuration

Enable the option named Proxy settings and perform the following configuration.

• Don’t allow Proxy settings to be changed – Yes.
• Connection Type – Manual Proxy configuration.
• HTTP Proxy – Enter the Proxy server IP address and TCP port.
• Use this Proxy server for all protocols – Yes.
• SOCKS version – SOCKS v5.

Change the Proxy configuration to suit your needs.

GPO - Mozilla Firefox Proxy

To save the group policy configuration, you need to close the Group Policy editor.

Congratulations! You have finished the GPO creation.

Tutorial GPO - Mozilla Firefox

On the Group policy management screen, you need to right-click the Organizational Unit desired and select the option to link an existent GPO.

Windows-2012-Applocker application

In our example, we are going to link the group policy named MY-GPO to the root of the domain.

GPO- tutorial linking

After applying the GPO you need to wait for 10 or 20 minutes.

During this time the GPO will be replicated to other domain controllers.

On a remote computer, verify the Proxy configuration of Mozilla Firefox.

GPO - Firefox Proxy Configuration

In our example, we used a GPO to configure the Proxy server of Mozilla Firefox.