221 reviews
  • 本質的です
  • Thanks!
  • Great add-on.
  • es debe tener
  • Awesome add-on
  • Great extension, I really like the look of the icon in the address bar.
  • Apologies, but this is an honest question: What would be the purpose of the add-on having access to 'all website data' such as banking/email login information?
    You can look at the code (either at https://github.com/kkapsner/CanvasBlocker/ of you can download the xpi-file, change the extension to zip and look at the content). It does not store any private information or sends anything to a server.

    UPDATE: I just realized I did not answer the question. The addon does not need access to login information (and does not use it). But there is no techical difference between the information the addon needs access to (the canvas and JS that are used for fingerprinting) and other information. I would gladly only take the permission to access the information that I only need - it's just not possible.
  • Very good add-on
    It would be bery nice if this great add-on also could portect against font fingerprinting.
  • .
  • Отлично работает ;>
    Спасибо Разработчикам>
  • @ kkapsner

    Please check the link below:


    is positive for Canvas Defender and ScriptSafe for Chrome.
    With CanvasBlocker the icon briefly appears and disappears immediately.


    Unable to view single images.
    I can insert some links but privately.
    Thanks for your finding. The faking is working fine - just the display of the icon is confused by this site. This will be fixed in the next release (see https://github.com/kkapsner/CanvasBlocker/issues/149 for reference - btw it's much easier for us to communicate on github via issues than AMO)

    Since this is a minor issue there will not be a release for this alone.
  • can't get the add on CavasBlocker on the new quantum version beta.Keeps telling me I'm running version 54.0???
    Please recheck your Firefox version and try to add it again. Version 0.4.2 should also run with Firefox 52.4.1
  • Thanks for creating this, kkapsner. Super helpful.
  • Thanks for you job.