Alongside all the features and improvements in the roadmap for the new version of Microsoft Edge based on the Chromium engine, Microsoft is including a compatibility mode using the Internet Explorer rendering engine to load old websites.
The feature is known as “IE Mode,” and it’s designed for organizations to load internal sites without the need to use a separate browser or having to redesign the site. The new approach loads the pages within Microsoft Edge just like a normal website without the need to use and manage multiple browsers.
If you want to start using this new features, the version of Microsoft Edge available through the stable channel already include the feature, but you can only enable it using the Group Policy editor.
How to IE mode on Microsoft Edge
To enable IE Mode on Chromium Edge, you need to configure the feature from the “flags” settings page, but in the final release, the process has changed, and the official process now is done through Group Policy.
Installing Microsoft Edge policy template
To install the policy template to enable IE Mode on Edge, use these steps:
Under the “Policy File” section, click the Download button.
Click the Accept and download button.
Double-click to open the MicrosoftEdgePolicyTemplates.cab file.
Right-click the “MicrosoftEdgePolicyTemplates.zip” file and select the Extract option.
Select the destination folder.
Click the Extract button.
Double-click to open the MicrosoftEdgePolicyTemplates.zip file.
Click the Extract all button from the “Compressed Folder Tools” tab.
Check the Show extracted files when complete option.
Click the Extract button.
Navigate to the following path inside the (extracted) “MicrosoftEdgePolicyTemplates” folder:
Select the msedge.admx file and click the Copy option from the “Home” tab.
Navigate to the following path:
Click the Paste button from the “Home” tab.
In the “admx” folder (see step No. 12), open your language folder. For example, en-US.
Select the msedge.adml file and click the Copy option from the “Home” tab.
Navigate to the following path that matches your language:
In the above command, make sure to change en-US for the folder that matches your language.
Once you complete the steps, the new policies to enable or disable IE Mode on Edge Chromium will install in the Group Policy Editor.
Enabling IE Mode on Microsoft Edge
To enable IE Mode on Chromium Edge with Group Policy, use these steps:
Search for gpedit and click the top result to open the Group Policy Editor.
Browse the following path:
Computer Configuration > Administrative Templates > Microsoft Edge
Double-click the Configure Internet Explorer integration policy.
Select the Enabled option to enable IE Mode for Microsoft Edge.
Under the “Options” section, select the Internet Explorer mode from the dropdown menu.
Click the Apply button.
Click the OK button.
After you complete the steps, websites will render in compatibility mode, and you’ll notice a familiar IE icon on the left side of the address bar letting you know the website is using Internet Explorer.
These steps enable IE Mode for intranet websites, if you want to load external websites using Chromium Edge, you need to enable and set up the “Configure the Enterprise Mode Site List” policy, which includes the creation of an XML file with the list of domains that you want to load automatically with the Internet Explorer mode.
Update November 20, 2019: This guide has been revised with the steps to configure IE Mode on the Chromium version of Microsoft Edge using Group Policy.