CanvasBlocker
Blocks or fakes the browser APIs most used for fingerprinting.
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About CanvasBlocker
CanvasBlocker alters the results returned by canvas, audio, WebGL, font and other JavaScript APIs, either blocking them or returning slightly faked values per domain and per session, so a fingerprint cannot be matched across sites. Protection levels and per-site rules are configurable.
Strengths
- Faking rather than blocking keeps sites working while breaking the fingerprint
- Very granular per-API and per-site configuration
Limitations
- Firefox focused
- Aggressive settings break image editors, games and captchas
Details
- Pricing
- FreeFree and open source under the MPL.
- License
- MPL-2.0
- Developer
- kkapsner
- Platforms
- Browser extension
- How it runs
- Browser extension
- Best suited for
- Blocks or fakes the browser APIs most used for fingerprinting
- Categories
- Browser tools
- Last verified
- Added
- Provenance
- Selected from the TechWalrus Resource Hub (Browser Extensions); facts checked against the developer's own pages, 3 sources on file.