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. at the left-hand side of your addressbar..
- Click on [Allow and Remember].
- Now try launching the VDI again.