RUM Extension (Browser Extension) monitors User Experience of a web application that doesn’t allow JavaScript injection into their app (e.g. Salesforce.com). For more information about Real User Monitoring, see User Monitoring and Replay.



  1. Go to Germain Workspace > Left Menu > Wizards > UX Extension

2. Set Application Name, URL, Software and UX Monitoring Profile


Local (Individual User)

Each user can manually install Germain RUM Extension by going to Chrome, Edge or Firefox extension store.

Below an example how to install it for Chrome Browser:

Germain RUM Extension has been installed locally on the user’s browser.

Windows Group Policy (All Users)

As an administrator, you can automatically install (force-install) specific Chrome apps and extensions for all users in your organization.

Here are the steps to configure it:

  • Download the latest Google policy templates - Google Policy Templates

  • Extract it and navigate to windows\admx

  • Copy the following files into C:\Windows\PolicyDefinitions on your administrative workstation:

    • chrome.admx

    • google.admx

  • Navigate now to windows\admx\en-US

  • Copy the following files into C:\Windows\PolicyDefinitions\en-US on your administrative workstation:

    • chrome.adml

    • google.adml

In your Microsoft Windows Group Policy Editor (Computer or User Configuration folder):

  • Go to Administrative Templates Google Google Chrome Extensions

  • Open Extension management settings.

  • Enable the policy and enter its compact JSON data in the text box
    Note: Enter JSON data as a single line with no line breaks.

      "fkcljfeejffnjajnpjflfammljcmdfnh": {
        "installation_mode": "force_installed",
          "update_url": "https://clients2.google.com/service/update2/crx"

After you deploy your Chrome extension policy, check user devices to make sure the policy was applied correctly.

  • On a managed Chrome device, browse to chrome://policy

  • Click Reload policies

  • Verify that the policy we deployed has been applied

More information about Chrome Extension deployment via Group Policy available on Google’s documentation: https://support.google.com/chrome/a/answer/3115278?hl=en&ref_topic=9023257 and https://support.google.com/chrome/a/answer/9867568?hl=en.


  • You will need Germain environment (cloud or onpremise) to visualize the data collected by this extension.

  • Automatic deployment is normally what customers opt for, rather than asking application users to manually deploy this Browser extension.

  • Enable/Disable button is available to turn this Browser Extension on or off for all your application users.

Component: RUM Extension

Feature Availability: 8.6.0 or later