While cookies and other means have been used to track users online for some time. A new tracking mechanism was recently developed in 2014. This mechanism uses the HTML 5 Canvas element to track visitors and it’s called fingerprints on canvas. However, since privacy is the most important security aspect these days, you need to make sure your browser is canvas fingerprint proof.

We’ve already talked about how to block canvas fingerprints in Firefox. In this article, we have discussed Canvas Fingerprinting in detail and covered a free Chrome extension “Canvas Defender” that you can use to protect your device’s fingerprint.



What is canvas fingerprint

Canvas fingerprinting is a technique that records your computer’s fingerprints based on your graphics hardware. These fingerprints can be shared by websites and essentially track your internet usage. Advertising companies make extensive use of these fingerprints, or digital tokens, to serve you personalized ads and track your behavior.

When you visit a website that has Canvas Fingerprinting enabled, your browser will be prompted to draw hidden graphics. Now, these rendered graphics can contain information about your system type, operating system, GPU and graphics driver. All of these details combined with other information make up your unique fingerprint. Although the uniqueness is not as good when combined with other fingerprinting methods, the desired amount of entropy and uniqueness can be achieved.

lily Browser fingerprinting and online privacy.

Prevent canvas fingerprinting in Google Chrome

Use an extension called web defender, You can prevent canvas fingerprinting in your browser. What’s special about this extension is that Canvas doesn’t block fingerprinting entirely, instead it hides your original fingerprint and replaces it with fake data.

Block canvas fingerprints in Chrome with Canvas Defender

To see this tool in action, you can go to browserleaks.com/canvas and check your browser’s current uniqueness and signature. The browser automatically generates the noise and the browser reports an incorrect value when detecting web fingerprints on a website.

It is recommended that you create a new fingerprint from time to time to protect your identity. Also, the extension can notify you when a website tries to get your identity from the canvas. These notifications can quickly become annoying and there is currently no way to turn them off.

In addition, the tool can work in both normal and incognito modes and has full fingerprint protection. You can even whitelist websites that you normally want to use with your original fingerprint. You can also set a time interval after which the fingerprint will be changed automatically. It offers a variety of options ranging from 5 minutes to a week.

Canvas Defender is a must-have Chrome extension. It can silently protect you from canvas fingerprinting by generating fake signature. Unlike other fingerprint blocking apps, this extension does not completely block fingerprints on your browser. Fingerprint blocking is another identifier for websites and you have blocking software installed. Instead of blocking, this extension can hide your identity in a completely safe way.

Does a VPN prevent fingerprints?

No, a VPN alone will not prevent browser fingerprinting. A VPN hides the true IP address assigned to you by your ISP and location. However, this does not protect you from browser fingerprinting. The fingerprint is based on unique variables that are not present in your browser or operating system.

What is device spoofing?

Device spoofing occurs when a user tries to access a website with a fake or altered device ID. A user can do this for a variety of reasons, including bypassing security features or hiding their identity. Canvas fingerprinting is a type of device spoofing that uses the HTML5 canvas element to collect information about a user’s device and create a “fingerprint” that can be used to track them across the web.

Noise generator for fingerprint defender

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