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Reviews for CanvasBlocker

CanvasBlocker by kkapsner

4.6 Stars out of 5
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352 reviews
  • by Firefox user 13230603, 5 years ago
  • by surrealisme, 5 years ago
    Hello, interested in the check mark "Share persistent randomness between domains", if you remove it, I realized that each domain will have different data, if you turn it on, a warning that there will be a leak, the question arose, what can domain x request from domain y? and what result will it get if this checkbox is disabled and the request is received

    Developer response

    posted 5 years ago
    You can read the background of this flag in https://github.com/kkapsner/CanvasBlocker/issues/290

    To be short: this flag makes you 100% unique and trackable across all domains. The use case for this was not to prevent fingerprinting but to disguise. Not quite the main focus of CanvasBlocker but it seemed useful for some folks.

    In general I highly discourage you to from using this flag unless you clearly understand it and it suits your need. If you use it you have to reset your persistent random number generator quite frequently.

    PS: domain x cannot request any additional data from domain y but the faking will add the same "randomness" to the API readouts and this information can be used to be tracked.
  • by Thomas, 5 years ago
    Das Plugin ist sehr gut und tut, was es vorgibt.

    Wenn ich die beschriebenen Fehler anschaue, würde ich anregen in den Einstellungen den Default-Blockiermodus auf "vortäuschen" zu setzen. Das Problem: Sehr viele Seiten setzen heute auf Canvas unterschiedlichen Arten. Mit der Default-Einstellung werden die Seiten stillschweigend nicht geladen. Im Fragemodus wird man permanent belästigt: Selbst WordPress-Seiten setzen auf Canvas.

    Ev. wäre eine Testseite hilfreich, wo man die Einstellung testen kann. Im Paranoiden Modus ist "amiunique" nicht mehr aussagekräftig bzw. lädt nicht mehr sauber. Im Modus "vortäuschen" auch nicht mehr wirklich, da die Testapp das Gefühl hat, sie kriege echte Daten. Eine Konfig, dass man grad noch arbeiten kann aber genügend blockiert wird, ist nicht ganze einfach.

    Developer response

    posted 5 years ago
    Danke für die Vorschläge. Der Standardblockiermodus ist schon "vortäuschen" und unter https://canvasblocker.kkapsner.de/test/ gibt es Testseiten für die einzelnen APIs. Wenn Sie noch weitere Vorschläge oder Verbesserungen haben, können Sie diese gerne unter https://github.com/kkapsner/CanvasBlocker/issues hinterlegen.
  • by Filipo, 5 years ago
  • by EleanorDeveloper, 5 years ago
    Such a wonderful addon. Works like charm
  • by Mark P, 5 years ago
    One of the best Spoofing addon, Developer is excellent person.

    Developer response

    posted 5 years ago
    Thanks for the nice complement.
  • by Firefox user 13710465, 5 years ago
  • by ashrafhadden, 5 years ago
  • by SyIris‘ K, 5 years ago
  • by Valkoinen, 5 years ago
    A very necessary idea. Great embodiment. Must have addon. Thank you!
  • by Rox, 5 years ago
    Thanks, works great and easy to setup. A well made add-on.
  • by ᴋɪʀᴀ ꜱᴍɪᴛʜ, 5 years ago
    Thanks, very much options to hidden such parameters
  • by anelki, 5 years ago
  • by Joey, 5 years ago
    Hi. I've been using this add-on for a while now. Is it still relevant with the new Firefox update which includes anti-fingerprinting? thanks

    Developer response

    posted 5 years ago
    Yes, it still has purpose. See https://github.com/kkapsner/CanvasBlocker/issues/349 for further information.
  • by Firefox user 15493398, 5 years ago
  • by Samisan, 5 years ago
  • by Powerman, 5 years ago
    Absolute amazing job !
    Please make a defender for font fingerprinting also. You have the skills as the only :-)
  • by Firefox user 13550075, 5 years ago
  • by Lo, 5 years ago
  • by Cybo1927, 5 years ago
  • by Um abrazo para sus brazos, 6 years ago
  • by Firefox user 15320931, 6 years ago
  • by Firefox user 12792321, 6 years ago
  • by Firefox user 15082512, 6 years ago
    Seems to work quite well, was having an issue with cb and privacy badger would result in pages not loading at startup but latest alpha seems to have fixed that

    Developer response

    posted 6 years ago
    Do you have Privacy Badger installed? I can replicate your issue when both are installed (CB has to be activated first to reproduce it). But please open an issue at https://github.com/kkapsner/CanvasBlocker/issues to discuss your problem in details.
  • by Avital, 6 years ago
    I have only heard good things about CanvasBlocker! So i decided to try, and im sure its great, i just wish there would be a dummy guide for non tech savy people like me.

    I dont know why it works on some sites, and not on others? On YouTube its working directly and i can see many fake readouts, but on many sites it doesnt look like its active? The icon is green and i cant see any notifications about fake readouts.

    Developer response

    posted 6 years ago
    Having some sort of Q&A/wiki page is on my list. If you have specific questions you can always post them at https://github.com/kkapsner/CanvasBlocker/issues

    Some sites do not use fingerprinting. That's why the icon is green and no notifications show up. But keep in mind that not all notifications mean that a fingerprint is generated. Also legit use of the APIs can trigger the notification. It's just an indicator that CB did something.