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After updating Mozilla Firefox to Version 39 or later, VMware vSphere Web Client Integration Plugin 6.0 no longer functions (2125623)

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Symptoms

After upgrading Mozilla Firefox to Version 39 or later, you experience these symptoms:
  • You are repeatedly prompted to download the Client Integration Plug-in when opening the vSphere Web Client page
  • Deploying an OVF template displays this message:

    Client Integration Plug-in must be installed to enable OVF functionality

  • Uploading a Local File through the Storage > Manage > Files Browser displays:

    Install the Client Integration Plug-in to enable file transfer

  • When connecting to the vSphere Web Client (location: https://FQDN_of_vCenter/vsphere-client ), the Use Windows session authentication option is grayed out
  • When connecting to the vSphere Web Client, attempting to use the Use Windows session authentication option fails with the error:

    Windows Session Authentication login has failed as a result of an error caused by the VMware Client Integration Plugin

  • You cannot open the virtual machine console
  • You cannot deploy OVF templates from your desktop via OVF Deployment's Local File option
  • When attempting to deploy an OVF template you see the message:

    Client Integration Plug-in must be installed to enable OVF functionality

  • When attempting to upload a local file through the Storage > Manage > Files Browser, you see the message:

    Install the Client Integration Plug-in to enable file transfer

Resolution

This issue is resolved in the vSphere Client Integration Plugin that is part of vCenter Server 6.0 Update 1, available at VMware Downloads. For more information, see the VMware vCenter Server 6.0 Update 1 Release Notes.

If you are unable to upgrade, you can work around this issue by disabling the security.ssl3.dhe ciphers within Mozilla Firefox.

To disable security.ssl3.dhe ciphers in Mozilla Firefox:
 
  1. Open a new browser tab in Mozilla Firefox.
  2. In the address bar, enter:

    about:config

  3.  Click I'll be careful, I promise to accept the warning.
  4. In the search field, enter security.ssl3.dhe and press Enter.
  5. Locate these ciphers:

    security.ssl3.dhe_rsa_aes_128_sha
    security.ssl3.dhe_rsa_aes_256_sha


  6. Right-click and click Toggle to set their Values to False .
  7. Refresh or launch the vSphere Web Client landing page and use the CIP feature.

See Also

Update History

09/10/2015 - Added the details of the vCenter Server 6.0 U1 release, which resolves the issue.

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