To enable Webex Plug-in:

1. Click on the apple icon at the top-left of your screen, then select System Preferences....
2. Double-click the Security & Privacy icon.
3. Click the lock icon at the bottom-left of the window.
4. Enter the username and password for your account, then click the unlock button.
5. Click on the Privacy tab:

6. Select the Microsoft Outlook box under WebExPluginAgent.