{"id":69852,"date":"2022-08-23T12:52:37","date_gmt":"2022-08-23T19:52:37","guid":{"rendered":"https:\/\/blog.mozilla.org\/?p=69852"},"modified":"2022-08-23T18:33:28","modified_gmt":"2022-08-24T01:33:28","slug":"how-firefoxs-total-cookie-protection-and-container-extensions-work-together","status":"publish","type":"post","link":"https:\/\/blog.mozilla.org\/en\/firefox\/how-firefoxs-total-cookie-protection-and-container-extensions-work-together\/","title":{"rendered":"How Firefox\u2019s Total Cookie Protection and container extensions work together"},"content":{"rendered":"\n

When we recently announced the full public roll-out of Firefox Total Cookie Protection<\/a> \u2014 a new default browser feature that automatically confines cookies to the websites that created them, thus eliminating the most common method that sites use to track you around the web \u2014 it raised a question: Do container extensions like Mozilla\u2019s Facebook Container<\/a> and Multi-Account Containers<\/a> still serve a purpose, since they similarly perform anti-tracking functions by suppressing cookie trails?<\/p>\n\n\n\n

In short, yes. Container extensions offer additional benefits even beyond the sweeping new privacy enhancements introduced with Firefox Total Cookie Protection.<\/p>\n\n\n\n

Total Cookie Protection + container extensions = enhanced anti-tracking <\/h2>\n\n\n\n

Total Cookie Protection isolates cookies from each website you visit, so Firefox users now receive comprehensive cookie suppression wherever they go on the web. <\/p>\n\n\n\n

However, Total Cookie Protection does not isolate cookies from different open tabs under the same domain<\/em>. So for instance, if you have Google Shopping open in one tab, Gmail in another, and Google News in a third, Google will know you have all three pages open and connect their cookie trails. <\/p>\n\n\n\n

\"\"
Total Cookie Protection creates a separate cookie jar for each website you visit. (Illustration: Meghan Newell)<\/em><\/figcaption><\/figure>\n\n\n\n

But with a container extension, you can isolate cookies even within parts or pages of the same domain. You could have Gmail open in one container tab and Google Shopping and News in other containers (for instance, under different accounts) and Google will be oblivious to their relation. <\/p>\n\n\n\n

Beyond this added privacy protection, container extensions are most useful as an easy means of separating different parts of your online life (e.g. personal, work) within the same browser. <\/p>\n\n\n\n

A couple reasons you might want Multi-Account Containers installed on Firefox\u2026 <\/p>\n\n\n\n