Troubleshooting blank or black screens with Citrix Workspace in Safari on a Mac

Apple’s latest operating systems, and Safari version 12, create new security procedures that need to be addressed in order to open many Citrix Workspace apps.

Use the steps below to help resolve black or blank screens in Safari when attempting to access Citrix Workspace apps after a system update or Mac upgrade.


  • Citrix Workspace must be installed on your Mac | KB0018621 - includes macOS system requirement

Safari Settings for Workspace

  1. Open Safari and go to  
  2. Open the Safari Menu Bar at the top of your screen (separate from the Safari window)
  3. Select Settings for this Website. This will open a new menu, under the address bar.
  4. In the website's setting window (reads "when visiting this website" at the top), perform the following steps:
    • Uncheck the Enable content blockers box
    • Click over Pop-Up Windows and select Allow

  1. Click anywhere on the page to close the menu.
  2. Refresh the page by clicking on the circular arrow (located on the right of the address bar)
  3. Click Detect Receiver (if it is not already running)

  1. Sign-in with your MGB network credentials (user ID and password) as necessary

  • If system asks: Do you want to allow this page to open "Citrix Worskpace Launched"? Select Allow.

  • If Citrix Workspace asks for an email address or a URL, select Cancel.

Opening .ici files

After selecting an MGB application (Epic, Kronos, etc.) the system downloads a file ending in .ici. 

Open your downloads and select the latest .ici file

Afterwards, Citrix Workspace will open the selected application on your Mac.

Apps may appear different due to individual access rights and permissions.

Go to KB0036191 in the IS Service Desk