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Canvas Fingerprinting

Canvas fingerprinting is a common method used to identify you when browsing the web. This method works by using HTML5 and JavaScript to draw a picture. You can’t see this picture. But once your browser renders it, the binary code used to generate the pixels creates a digital signature that is completely or largely different from signatures created on other computers when drawing the same image.

And that’s why it’s called a signature – because it can be pretty closely matched the next time an advertiser – or someone else – sees that same signature on another web page, they can pretty closely guess it is you.

The truth about Canvas fingerprinting is that the fingerprints aren’t always unique. Therefore Canvas fingerprinting is just one technique that is usually used in combination with others to really zero-in and identify you.

To fight fingerprinting though, you can inject “noise” into the digital signature we referenced above. And that’s how we do it in Ghost.

To protect yourself against Canvas fingerprinting in Ghost Browser go to Menu –> Settings –> Advanced –> Privacy, then toggle the option to ‘Enable Canvas Noising’.


  1. rodico on November 19, 2018 at 5:27 am

    In Ghost Browser ,is Canvas fingerprint the same for all tabs within a session or identity?

  2. Anonymous on December 10, 2019 at 11:54 am

    so when will this featured canvas be included??

    • Larry Kokoszka on December 10, 2019 at 1:57 pm

      Canvas Fingerprint protection is included as an option. Please go to Menu–>Settings and search for ‘Canvas’. You will see the option there!

  3. Anonymous on January 18, 2020 at 11:33 am

    Back in April 2018, you wrote “In this future implementation you’ll not only block tracking, but you’ll actually look like two totally different users if you are using different Identities in Ghost.” Wondering the status and/or ETA for this feature that was promised almost 2 years ago? thx…

    • R on May 11, 2020 at 10:12 am

      This is working for me, check out your panopticlick fingerprint!

  4. Travex on June 29, 2020 at 12:23 pm

    Does not work for me. Same fingerprint at all workspaces / Sessions.

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