What is a browser fingerprint? How do I avoid it?

A browser fingerprint is a profile of your device built from information your browser freely shares with every website without cookies. Websites collect your screen resolution, installed fonts, browser version, operating system, graphics card behaviour, time zone, language settings, and more. Together, these points identify you uniquely among millions of users.

To reduce fingerprinting:

• Use Tor Browser it normalises all fingerprint data to look identical across all users
• Use Firefox with uBlock Origin and Canvas Blocker extensions
• Use Brave Browser has built-in fingerprint randomisation
• Avoid unusual fonts or browser extensions
• Use common screen resolutions

No method makes you completely invisible. The practical goal is making your fingerprint look like thousands of other users.