Known issues in Citrix Receiver for Mac 12 The following known issues have been observed in this release: Use the “Refresh Apps” menu command to reconnect to the session again if it fails the first time.
In OS X Yosemite (10.10), the upgrade version of Safari might block Receiver as a pop-up window.On OS X El Capitan (10.11), virtual desktops and apps don’t display normally in Split View.
Click to expand.The plugin change is permanent as far as Apple is concerned. Apple making it more difficult again unfortunately (yes I know its for security reasons but from a user ability aspect its a poor security solution). Unfortunately it does not appear that there is anything that citrix can do to alter safari or macos to restore what use to be far simplier mechanism. This is described in the workspace forums. Note: this will take you to Citrix's website to download the latest installer.
Download the Citrix Receiver client for Mac, available from the Citrix Receiver and click Download. Refer to CTX200114 - Citrix Receiver Support for SHA-2 to view the Receiver versions which supports SHA-2. If you are using SHA2 certificates then the older version of Receiver does not support these certificate. Upgrade to the latest version of Receiver to verify if this resolves the issue. Citrix Receiver For Mac Older Versions Rating: 3,9/5 6107 reviews