This is the default option and won't break most websites.

Cross-site tracking cookies: This option blocks the cookies that track you across different websites, including those used by social media websites to tailor your advertising.

Now you can choose which cookies to block:

It's the most secure option, but it comes at the price of convenience. Block all cookies (not recommended): This option blocks all cookies, which can definitely cause many website features (including login and shopping carts) to break.This is the best option for blocking cookies without losing access to convenient website features. Block third-party cookies: This option allows websites to save cookies used to improve your browsing experience (such as those which keep you signed in or manage an online shopping cart) while blocking invasive tracking cookies.

If you choose this option, you'll keep the normal benefits of cookies on websites, as well as tracking cookies, but have the option to use Incognito mode when you want to stay private. Block third-party cookies in Incognito: This option leaves cookies turned on but disables them when you're browsing in an Incognito window.You'll see several options for blocking cookies in the 'General settings' section:

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