How to Delete Cookies From a Mac

Instructions
Step 1
Delete cookies through the individual browser. For Safari, Open the browser menu and select "Preferences," then click the "Security" tab. Click "Show cookies," then "Remove all" and finally "Done." For Firefox, click "Preferences, then "Privacy," then "Show cookies." Choose to "Remove all cookies."
Step 2
Delete all of your cookies at once by eliminating a file. For operating systems earlier than Leopard 10.5, you can delete all cookies by moving "cookies.plist" to the trash. Press the "Command" button + the space bar to open the Spotlight search function.
Step 3
Type "cookies.plist" into Spotlight.
Step 4
Move the file to the trash can.