Delete Cookies in Safari on Mac Go to the “Safari” menu choose click “Preferences” Now choose the “Privacy” tab Click on the “Remove All Website Data” button, it will be next to “Cookies and other website data” Confirm the removal to delete all the cookies from the Safari browser Delete Cookies in Firefox on Mac * Click on the ‘Firefox’ menu * Navigate down to ‘Preferences’ and click * Click on ‘Privacy’ * Click ‘Show Cookies’ or ‘Remove Individual Cookies’ button, depending on Firefox version * Click ‘Remove All Cookies’ Delete Cookies in Chrome on a Mac Go to the “Chrome” menu and choose “Preferences” Under the “Settings” section, click on ‘Advanced’ Choose “Clear browsing data”