Would you like to learn how to use a group policy to configure Mozilla Firefox as the default browser? In this tutorial, we will show you how to create a group policy to configure Firefox as the default browser of Windows 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 - Configure Firefox as the default browser

Create a shared folder.

This will be the distribution point of the required XML configuration file.

GPO - Default browser configuration

In our example, a shared folder named CONFIGURATION was created.

All the domain users and all the domain computers were given read permission over this folder.

GPO - Default browser configuration share

In our example, this is the path to access the network share.

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On the notepad application, create an XML file named MYCONFIG.

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In our example, this is the network path to access the XML file.

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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 File explorer.

GPO - Configure default browser

Enable the option named Set a default associations configuration file.

Enter the network path to the XML file.

GPO - default browser

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

Congratulations! You have finished the GPO creation.

Tutorial - Applying the GPO to configure Firefox as the default browser

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

Reboot a remote computer and verify if Mozilla Firefox was configured as the default browser.

GPO - Default browser Mozilla Firefox

In our example, Mozilla Firefox was configured as the default browser of Windows using a GPO.