  Browsers and their users can be tracked even in the absence of a persistent
IP address or cookie. Unique and hence identifying pieces of information,
making up what is known as a fingerprint, can be collected from browsers by a
visited website, e.g. using JavaScript. However, browsers vary in precisely
what information they make available, and hence their fingerprintability may
also vary. In this paper, we report on the results of experiments examining the
fingerprintable attributes made available by a range of modern browsers. We
tested the most widely used browsers for both desktop and mobile platforms. The
results reveal significant differences between browsers in terms of their
fingerprinting potential, meaning that the choice of browser has significant
privacy implications.
