Trackers are all those annoying “cookies” messages you get on airline sites. These third-party trackers know where you click and can be used to analyze your behavior. A private browser should give users the option to turn off third-party trackers, but ideally, turn them off by default.
跟踪器就是你在航空公司网站订票时会看到的“Cookie”相关信息。这些第三方跟踪器会知道您点击了哪些链接、按钮，并分析您的行为。一款隐私浏览器应该给予用户选项关闭第三方跟踪器，更理想的是，默认关掉这些跟踪器。