Install the extension using Native Host Only method

For the UiPath Extension for Edge to work correctly, two components must be available on the machine:

• The UiPath browser extension: installed in the Microsoft Edge browser. This component runs inside the browser.
• The Chrome Native Messaging Host: installed on the machine as ChromeNativeMessaging.exe. This component enables communication between the browser extension and UiPath Studio/Robot.

The Native Host Only method installs only the Chrome Native Messaging Host component, without installing the browser extension itself.

Use this method when the browser extension is installed or managed separately, for example through ExtensionSettings Group Policy, or another enterprise browser management solution.

Important:

• The Native Host Only method does not create or update the Windows Registry keys used by Microsoft Edge Group Policy. You must configure the required policies separately to install the UiPath extension in Edge.
• It gives you the flexibility to avoid configuring restricted policies, such as DeveloperToolsAvailability or DeveloperToolsAvailabilityAllowlist / DeveloperToolsAvailability.

Installation methods

You can install the Native Messaging Host in one of the following ways:

1. From UiPath Studio: Navigate to Home > Tools > UiPath Extensions. For the Edge extension, select Native Host Only from the installation method list, and select Install.
2. Using the SetupExtensions tool: Run the following command from an elevated command prompt: &"C:\Program Files\UiPath\Studio\UiPath\SetupExtensions.exe" /Edge-Chromium-NativeHostGlobal /silent
3. Using the UiPathStudio.msi installer: Add the EDGE_INSTALL_TYPE=NativeHostOnly parameter to the installation command:

Deploy the extension to the browser

After installing the Native Messaging Host, deploy the extension itself using one of the supported methods.

Group Policy Offline

To deploy the extension via Group Policy Offline, add the following entry to the ExtensionInstallForcelist policy:

ndmegdjihnhfmljjoaiimbipfhodnbgf;file:///C:/ProgramData/UiPath/UiPath.Common/EdgeExtension_SelfHosted/extension_manifest_edge.xml

For the additional policies required (NativeMessagingAllowlist, DeveloperToolsAvailabilityAllowlist, DeveloperToolsAvailabilityBlocklist), see the Group Policy Offline section.

Key points

• ExtensionInstallForceList policy is mandatory.

• NativeMessagingAllowlist is required only if NativeMessagingBlockList = *.

• If Developer Tools policies are not configured, the Inject Js Script activity will not work.

  ::: important For full extension functionality in managed Chrome environments, configure DeveloperToolsAvailabilityAllowlist and DeveloperToolsAvailabilityBlocklist, or set DeveloperToolsAvailability=1. :::

ExtensionSettings or Chrome Cloud Machine Policy

For details on deploying via ExtensionSettings, see the official Microsoft Edge documentation.