VDI not lanching since Firefox update 33

Since Firefox update 33 (October 14th 2014) clicking on the VDI icon does not launch the VDI.

The launch of the  Citrix Receiver is prohibited/blocked by Firefox. You need to confirm that you want to allow this.

Follow these steps:

  • Click on the plugin-button.Icoon blokkade Firefox at the left-hand side of your addressbar..
  • Click on [Allow and Remember].
    Click 'Allow and Remember'.
  • Now try launching the VDI again.