"Canvas" is an extension available for Firefox from what I saw on the Mozilla site. And, naturally, it is to be used with "your friend" google. BC ........................................................... Researchers found one in 18 of the world’s top 100,000 websites track users without their consent using a technique known as ‘canvas fingerprinting.’ In total, 5,619 sites including the White House and Perez Hilton are known to feature plugins that obtain details about a user’s browser, web history and computer. The mechanism, called ‘canvas fingerprinting’, uses special scripts – the coded instructions that tell a browser how to render a website - to exploit the browser’s so-called ‘canvas’. The canvas is a browser tool that can be used to draw images and render text. When a user visits a website with canvas fingerprinting software, the plugin tells the user’s browser to print an invisible string of text on this canvas. It then tells the browser to read back data about the pixels in the, invisibly, rendered image on the canvas. http://www.dailymail.co.uk/sciencetech/article-2701593/The-hidden-threat-bro... -- Using openSUSE 13.1, KDE 4.13.3 & kernel 3.15.6-2 on a system with- AMD FX 8-core 3.6/4.2GHz processor 16GB PC14900/1866MHz Quad Channel RAM Gigabyte AMD3+ m/board; Gigabyte nVidia GTX660 GPU -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org