Uninstall McAfee Internet Security on your Mac:
1.In the Dock, find and open the Applications folder.
2.Double-click the McAfee Internet Security Uninstaller.
3.Click Continue.
4.Type in your administrator password and click OK.
5.Click Finish.
NOTE: By default, the option to uninstall SiteAdvisor is not selected. If you want to remove this browser add-on, select the check box beside Uninstall SiteAdvisor in Step 2