Mozilla makes its complete cookie protection (Total Cookie Protection aka TCP) standard in its Firefox browser. For new users who get Firefox, the feature is enabled by default. In general, the aim is to achieve the changeover for all users, including existing customers, by August 23, 2022.
In case you don’t want to wait, full cookie protection is already available in the “Strict” mode of Enhanced Tracking Shield in Firefox. According to Mozilla, the rollout will make Firefox the first and only major browser to offer full protection against tracking cookies and website isolation at the same time.
Complete cookie protection creates a separate “cookie jar” for each website you visit. Each time a website, or third-party content embedded in a website, drops a cookie on the browser, that cookie is limited to the cookie collection point uniquely assigned to that website.
That way, no other websites can reach into that cookie jar and find out what other websites’ cookies know about users. This gives users freedom from intrusive ads and reduces the number of information companies collect about them.
Essentially, this restricts cross-site tracking. Every website is basically housed in its own sandbox – including its content and all iframes, i.e. content from another website that is displayed on a website, including ads. A great thing for users, advertisers are certainly more annoyed about it.
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