The second is what we call “interaction data.” This is data about an individual’s engagement with { -brand-name-firefox }, such as the number of tabs that were open, the status of user preferences, or number of times certain browser features were used, such as screenshots or containers. For example, we collect this data in terms of the back button, that arrow in the upper left corner of your browser that lets you navigate back to a previous webpage in a way that shows us someone used the back button, but doesn’t tell what specific webpages are accessed.

第二部分是所謂的「互動資料」。這是關於每位使用者如何使用 { -brand-name-firefox } 的資料，諸如開啟了多少分頁、使用者偏好設定的狀態、瀏覽器特定功能（例如 Screenshots 或容器等功能）被使用的次數。舉例來說，若您點擊了視窗左上角「回到上一頁」的按鈕，我們會知道有人點擊過該按鈕，但不會知道您開啟了哪些網頁。