And also, the number of tabs opened by the user, the visited websites and time spent on the site, along with what was clicked and when you switched to a different tab.
The tracking and window identifiers allow Avast to create a precise reconstruction of users' browsing activities. The stealthy nature of the software is such that downloading & installing any one of these extensions on your web browser, will automatically install the respective subsidiary add-on on the user's browser.
