This page presents the most frequent reasons for which the UiPath Extension for Microsoft Edge might not work properly, and how to solve these issues.

Check if the Extension for Microsoft Edge is installed and enabled

1. In Microsoft Edge, navigate to edge://extensions/.
2. Make sure the extension is installed and enabled, as explained here.
3. If the extension was installed correctly but does not appear in Microsoft Edge, check if there are Group Policies that affect the extension, as explained here.

Check if ChromeNativeMessaging.exe is running

1. Open Microsoft Edge.
2. Open Task Manager.
3. Check if the ChromeNativeMessaging.exe process is running.

4. If the process is not running:

• Make sure the extension is installed. For more information on how to install it, check the docs page.
• Check if there are Group Policies affecting ChromeNativeMessaging.exe. See the docs page for more information.

Enable access to file URLs and InPrivate mode

By default, the extension is not granted access to File URLs or InPrivate mode. To enable these:

1. In Microsoft Edge, navigate to edge://extensions/. The Microsoft Edge Extensions page is displayed.
2. Navigate to the UiPath extension and click Details . The UiPath Web Automation details page is displayed.
3. Make sure the Allow in InPrivate and Allow access to file URLs options are selected.

Multiple browser profiles

Multiple Microsoft Edge instances with multiple user profiles

UiPath Extension for Microsoft Edge does not support automating multiple browser instances running with multiple user profiles at the same time. Therefore, browser automation requires you to close all active instances of Microsoft Edge and restart the browser using a single user profile.

Stopping all Microsoft Edge instances

In some cases, Microsoft Edge background processes prevent it from closing completely, which interferes with automations even if the browser instance is not visible.

We recommend closing Microsoft Edge by right-clicking the Microsoft Edge icon in the System Tray, and selecting Close Microsoft Edge. This ensures that no other user profiles remain in use in the background.

Check if ComSpec variable is defined correctly

If the UiPath Extension for Microsoft Edge cannot launch the ChromeNativeMessaging.exe, the solution is to manually add the ComSpec environment variable.

This variable is set at Windows install and should have the value %SystemRoot%\system32\cmd.exe.