Blocking third-party cookies improves privacy, but a few legitimate tools still need them. Embedded payment forms, single sign-on pages, booking widgets, and workplace apps may load from a different domain than the page you are visiting. In Chrome, Edge, and Firefox, you can usually make an exception for one trusted site.
Does this affect you?
Use this for Chrome, Edge, Firefox, or Safari on Mac and Windows when one site breaks with third-party cookies blocked and you do not want to lower protection for every site.
Add a site exception in Chrome or Edge
Chrome and Edge use very similar Chromium settings.
- Visit the site that is not working.
- Click the lock, tune, or site settings icon at the left of the address bar.
- Open Site settings or Cookies, depending on your browser version.
- Find Third-party cookies or Cookies and site data.
- Allow third-party cookies for this site.
- Reload the page and try the payment form, login, or embedded tool again.
You can also open Settings > Privacy and security > Third-party cookies, then add the site under the list of sites allowed to use third-party cookies.
Add an exception in Firefox
Firefox manages much of this through Enhanced Tracking Protection.
- Visit the site.
- Click the shield icon at the left of the address bar.
- Turn off Enhanced Tracking Protection for that site.
- Reload when Firefox asks.
This relaxes tracking protection for that site only. Other sites keep the normal Firefox protection level.
Add an exception in Safari
Safari does not offer the same simple per-site third-party cookie allow list. If a trusted site truly requires cross-site cookies, open Safari > Settings > Privacy and temporarily turn off Prevent cross-site tracking, then turn it back on when finished. Private Browsing is not a workaround because Safari is stricter there.
More control
Review exceptions later
Chrome, Edge, and Firefox exceptions stay until you remove them. Periodically check cookie exceptions and delete sites you no longer need.
Clearing cookies is separate from permissions
Clearing browsing data removes stored cookies, but the permission exception may remain. The site can set new cookies again next time unless you remove the exception too.
Some pages use several domains
If allowing the main site does not fix it, open the site settings panel and look for other blocked domains on that page. Embedded payment or login tools sometimes depend on more than one third-party domain.
Sources
- Google Chrome Help – Add site exceptions for cookies (2025)
- Mozilla Support – Enhanced Tracking Protection (2025)
- Apple Support – Prevent cross-site tracking in Safari (2025)