Enabling Cookies in Safari. Florentine L. August 21, 2018 02:25 Updated Select the Safari menu at the top left of your screen, with Safari open and active. Then click the Preferences item. Click on the Privacy tab. Choose your preferred cookies setting. Related articles I am getting a red error message. Turning Off Pop-up Blockers in Your Browser Clearing your Cache in Safari. I can't get into my Yuzu eTextbook, but I've accessed it before. I am getting a Not Found error message. Comments 0 comments Article is closed for comments.