If you want to share your desktop in a Collaborate Ultra session, you are required to install a Chrome Extension. Recent versions of Google Chrome prevent you from installing the Application Share extension within a Collaborate session.
When trying to share your screen without the extension installed, clicking on the Add to Chrome button will not add the extension.
Workaround
Install the extension before joining the session via the Chrome Web Store
- Open Google Chrome
- Go to the Application Sharing extension on the Chrome Web Store
- Click Add to Chrome
Note If you are already in a Collaborate Ultra session, you will need to restart it for the extension to work. Close the tab and rejoin the session for the changes to take effect.
More information
Available on Behind the Blackboard.