[artinfo] what every Browser knows about you

[János Sugár]

The second you log onto the internet, you start leaving a trace 
that's more telling than you think. Browsers can not only identify 
where you are in the world, but they collect a ton of other data too, 
such as where your mouse is hovering and when you launch a private 
browser window. Here's a way to find out exactly what you're leaking.
https://clickclickclick.click
Point your browser towards this website experiment called "Click" to 
get started. A cascade of information will begin to stream down on 
the page, from the number of cores your computer has to the movements 
your mouse makes.
http://thenextweb.com/shareables/2016/11/18/click-web-experiment/

_Webkay_ also displays a comprehensive list of everything websites 
can learn and guess about you, without asking for explicit 
permission, based on the data reported by your browser. Not only does 
it explain what's collected, it also links to tools you can use to 
prevent some of the leaks from happening. 
http://webkay.robinlinus.com/

you can install a NoScript browser extension (like _NoScript Security 
Suite for Firefox or _ScriptSafe_ for Chrome), which are able to 
block a lot of standard website sniffing code from being executed.