Browser extensions
CanvasBlocker privacy rating
Firefox extension that blocks or fakes the output of canvas and other JavaScript APIs that websites use for browser fingerprinting.
Summary
CanvasBlocker scores 80 out of 100 (grade B) on the browser extensions criteria. It meets 3 of 4 criteria: open source, no trackers or telemetry and no ads or data sales. It does not meet independent audit.
Score 80 out of 100. How scoring works
Criteria
- Yes
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Yes
No trackers or telemetry Weight 3 of 3
Are the website and apps free of third-party trackers, with any analytics anonymous and any telemetry off by default?
The extension does not collect any data.
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Yes
No ads or data sales Weight 2 of 3
Is the product funded without advertising, ad targeting or selling user data?
Free open-source extension with no ads.
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No
Independent audit Weight 2 of 3
Has an independent security or privacy audit been published within the last three years?
No independent audit is published.