Clearing temporary internet files and cookies in Safari To clear your temporary internet files and cookies on Safari, follow these instructions: With the Safari browser open, click 'Safari' in the top left of your screen and select ‘Preferences’. Within the window that pops up, click on 'Privacy' and then 'Remove all website data'. Click 'Remove now' to remove all data stored in your browser. Restart your browser. If you need assistance, please click here to see our contact details. Related articles App issues Welcome Offer Promotion Contact us Clearing temporary internet files and cookies in Firefox What are Spending Controls?