Controlling what your kids see when they go online is a full-time job, but with OS X Leopard (10.5) and above you can now control your kid’s accounts with ease. You can limit what applications they use and even how long they can use them for.
1. Log in to your Mac with an administrator account. If you aren’t sure if your account has admin privileges, go to the “Users & Groups” section of System Preferences. Admin accounts have the word “Admin” listed below the account name.
2. Create an account for your child, by clicking on the plus icon and filling in the form. Give them a password you can remember, so you can tell it to them. While you can leave the password blank, this leaves your computer open to anyone.
3. Check the “Enable parental controls” checkbox with your child’s account highlighted. Then click on the “Open Parental Controls” button.
4. Fill in your administrator password when you’re prompted for it. Only administrators can adjust the parental controls.
5. Choose the features you want to block. We recommend at least: