Part 2: Mac
The settings below only apply to Safari and if you want to block websites in Chrome, Firefox, or other browsers, you'll need to download specific add-ons for those browsers.
Step 1: From the Apple menu, select System Preferences.
Step 2: Select Parental Controls.
Step 3: Choose the user account on the left side of the window that you want to enable filtering for (your child’s account).
Step 4: Select Enable Parental Controls.
Step 5: Click the Content tab.
Step 6: Choose one of the three modes under Website Restrictions (unrestricted, automatic, whitelist).