You can manage cookies via your browser settings (allow, block, delete). Common browsers:
- Chrome: Settings → Privacy & Security → Cookies & other site data
- Firefox: Settings → Privacy & Security → Cookies and Site Data
- Safari: Preferences → Privacy → Cookies and website data
- Edge: Settings → Cookies and site permissions
For third-party cookies (e.g., YouTube), manage them on their sites directly or via your browser’s privacy controls.