# Not All Browsers Are Created Equal: Comparing Web Browser Fingerprintability

## TL;DR

This study compares how different modern browsers expose various attributes that can be used for fingerprinting, revealing significant privacy implications based on browser choice.

## Contribution

It provides an empirical analysis of fingerprintable attributes across popular browsers on desktop and mobile platforms, highlighting their varying fingerprintability.

## Key findings

- Significant differences in fingerprintability among browsers
- Mobile browsers exhibit different fingerprinting potential than desktop ones
- Browser choice impacts user privacy significantly

## Abstract

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.