Trying to log in via on Firefox on OSX Sierra and not having any success. Can't open any apps either. Have tried to restart and that makes no difference.
Is there a Citrix update needed or something similar?
Yes, if you've updated your Mac to Sierra you should log out of your MyDesktop session and download the latest version of Receiver from:
Once installed, log back in to MyDesktop and have another crack.....you should find it works just fine!
Let us know if you have any further problems.