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Reviews for CanvasBlocker

CanvasBlocker by kkapsner

4.6 Stars out of 5
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333
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411 reviews
  • by Firefox user 15124803, a year ago
  • by Nibinaear, a year 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 a year 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, a year ago
    A very useful add-on. Thank you very much.
  • by Anonymous, a year ago
  • by Firefox user 18086230, a year ago
  • by bibimbap, a year ago
  • by Firefox user 18055875, a year ago
  • by Firefox user 15183223, a year 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 a year 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, a year ago
  • by Firefox user 18037639, a year ago
  • by Firefox user 17118413, a year ago
  • by jieran233, a year ago
  • by Firefox user 13619463, a year 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 a year 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, a year ago
  • by mong, a year ago
    Gooooooooooooooooood!
  • by daishixu, a year ago
  • by Gamerz cart, a year ago
  • by Firefox user 14378348, a year ago
    Yes
  • by Firefox user 13566508, a year ago
  • by Alex, a year ago
  • by Firefox user 13954591, a year ago
    L'extenssion est super, elle manque juste a firefox sur android :)
  • by JustAFieryFox, a year ago
  • by FoxEnjoyer, a year ago
    Great extension, requires quite a bit of technical understanding, and the explanation for what different settings do could be better. Can have a significant performance impact with certain sites, but the extension, or Firefox usually notifies you when this is happening.
  • by Firefox user 17940255, a year ago
  • by Fxdemiurg, a year ago
    Font Fingerprint blocked?

    Developer response

    posted a year ago
    Font fingeprinting is not protected. See https://github.com/kkapsner/CanvasBlocker/issues/200 for the reasons why.