
Follow the below steps-
Note: For other browsers, we will provide corresponding links eventually. If the issue persists even with the extension installed, further troubleshooting will be required. In this case, you can contact the Technical Support team to assist with diagnosing and resolving the problem.
When you are trying to launch resources in Workspace via the Browser and the required extension is not present, then the above message pops up. When you access the Workspace site using browser with option of 'Apps and desktops will launch in your web browser or via HTML5 client, protected resources are not supported to launch through this method. Follow the solution by adding the extension to launch the protected resources via web browser. This will only work via workspace browser to the workspace store when the launch preference in workspace store to use Citrix Workspace App and not when using web receiver option from workspace store via browser
HTML5 launch will fail if the required extension is not installed.