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Reviews for CanvasBlocker

CanvasBlocker by kkapsner

4.6 Stars out of 5
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442 reviews
  • by Zodd, a year ago
  • by folgoris, a year ago
  • by snadge, a year ago
    not perfect, but it helps, especially if it is used with other addons, it still doesn't randomize your fingerprint like BRAVE does, only BRAVE gets 3 yes's on EFF's 'cover your tracks' (Ads, Trackers, Fingerprints), or, this addon, with Ublock Origin, Privacy Badger, Local CDN and NoScript (is what I use on Librewolf) gets you all 3 yes's on EFF (1 in 900, so 'common as muck' fingerprint, and unable to track & trace through fingerprinting)
  • by Firefox user 18264023, a year ago
  • by 深鸣, a year ago
  • by LongLive, a year ago
  • by Firefox user 16648806, a year ago
  • by Firefox user 16700479, 2 years ago
  • by Júlio C. Oliveira, 2 years ago
    On coveryourtracks.eff.org shows "Your browser has a unique fingerprint" with a red line under it, And on the section of hash it shows "randomized by first party domain", So I guess it is working some way.
  • by Tixie, 2 years ago
  • by Firefox user 15124803, 2 years ago
  • by Nibinaear, 2 years ago
    Caused massive slow down when using ebay and other websites. Firefox identified it as causing slow down, task manager showed as 30% cpu usage for FF.

    Developer response

    posted 2 years ago
    There is little I can do about the problem with eBay. Whitelisting the DOMRect-API helps:
    https://github.com/kkapsner/CanvasBlocker/issues/555
    https://github.com/kkapsner/CanvasBlocker/issues/563

    That's why it's whitelisted in the convenience preset.
  • by AvHmT, 2 years ago
    A very useful add-on. Thank you very much.
  • by Anonymous, 2 years ago
  • by Firefox user 18086230, 2 years ago
  • by bibimbap, 2 years ago
  • by Firefox user 18055875, 2 years ago
  • by Firefox user 15183223, 2 years ago
    There is a little problem with it... this extension is used by a relatively small community. When a site makes a fingerprint of your browser, the part of the fingerprint is the used extensions... If you can't hide your extension, then the existance of it with some other parameters are enough to track you. IMHO

    Developer response

    posted 2 years ago
    I'm aware of that problem. But since it changes stuff it can always be detected.

    But we try to spoof the "other parameters" so the tracking gets confused.
  • by Aminul, 2 years ago
  • by Firefox user 18037639, 2 years ago
  • by Firefox user 17118413, 2 years ago
  • by jieran233, 2 years ago
  • by Firefox user 13619463, 2 years ago
    had to disable it because its slowing my browser down again. im sure its mozillas fault, not yours but pls look into it. (this has happened before and it was their fault)

    Developer response

    posted 2 years ago
    For slowdowns the DOMRect API is a hot candidate. I had to disable the notifications for it and it solved my slowdowns.

    If this does not solve the problem please open an issue at https://github.com/kkapsner/CanvasBlocker/issues
  • by Firefox user 17151132, 2 years ago
  • by mong, 2 years ago
    Gooooooooooooooooood!