The Facebook buttons that appear on shopping, news, and other sites contain trackers that tell Facebook where you've been on the web. Even if you never use these buttons to like or share, the trackers can still collect data about your browsing. Facebook Container blocks these trackers.
显示在电商、新闻等网站的 Facebook 按钮都包含跟踪器，可告诉 Facebook 您曾经去过这些网站，就算您从未点击或使用这些按钮，跟踪器还是会收集您的浏览数据。 Facebook Container 会拦截这些跟踪器。