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vSphere Web Client Integration Plugin 5.x does not function (2114800)

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  • After upgrading Google Chrome to Version 42 or later, you are prompted to download and install the Client Integration Plug-in though it is already installed when you connect to the vSphere Web Client URL https://FQDN_of_vCenter:9443/vsphere-client.
  • The Windows session authentication option is grayed out.
  • Cannot open the Virtual Machine Console.
  • Cannot transfer files from your desktop to a datastore through Datastore Browser.
  • Cannot deploy OVF templates from your desktop through deployment's Local File option.


Upgrading to vCenter Server 5.5 Update 3a resolves this issue.


This issue occurs because the Netscape Plug-in API (NPAPI) is deprecated in Google Chrome 42 and later. The NPAPI is deprecated by all modern browsers.

For more information about the deprecation of NPAPI, see the Chromium Developers article Saying Goodbye to Our Old Friend NPAPI.

Disclaimer: VMware is not responsible for the reliability of any data, opinions, advice, or statements made on third-party websites. Inclusion of such links does not imply that VMware endorses, recommends, or accepts any responsibility for the content of such sites.


This issue is resolved in vCenter Server 5.5 Update 3a, available at VMware Downloads.  

To work around this issue if you do not want to upgrade, use one of these options:
  • Enable the NPAPI feature within Google Chrome 42 through 44.

    NOTE: These steps are not applicable to Google Chrome 45 and later.

    To enable NPAPI in Google Chrome:
    1. Open a new browser tab in Google Chrome
    2. In the address bar, enter:


    3. Under the Enable NPAPI section, click Enable.
    4. Refresh or launch the vSphere Web Client landing page and attempt to use the CIP features.
  • Use Mozilla Firefox version 39.x or later in to access the CIP-integrated features of the vSphere Web Client.
  • Use the vSphere Client.
Note: For virtual machine control due to the deprecation of NPAPI, the VMware Remote Console (VMRC) is released to take its place. For more information, see Downloading and Installing the standalone VMware Remote Console (VMRC) in vSphere 5.x and 6.0 (2091284).

Additional Information

If you are using vSphere 6.0, due to the deprecation of  NPAPI, some features are inaccessible. For more informaiton, see Unable to edit virtual machine settings to connect to CD/DVD image on a local disk in vSphere Web Client 6.0 (2114139).

See Also

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.


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  • 326 Ratings