How to delete an electronic certificate
Skip information indexMacintosh. How to delete an electronic certificate in Safari
On the Macintosh operating system with the Safari browser, the certificate is installed in the "Keychain Access" of Mac . To remove it follow these instructions:
Access "Finder", "Applications", "Utilities", "Keychain Access".
Select "Login" and click "My Certificates." Select the electronic certificate and right-click the certificate name (or press the "Control" key while left-clicking the certificate). In the drop-down menu, check the "Delete" entry next to the certificate name.
Confirm again by pressing the "Delete" button.