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Reviews for CanvasBlocker

CanvasBlocker by kkapsner

4.6 Stars out of 5
5
332
4
35
3
18
2
9
1
16
35 reviews
  • by Dewnan, 5 years ago
    I have a conflict between Privacy Badger and CanvasBlocker when starting FF or restarting with my restart_firefox.uc.js script, it stops at loading ex: google.com (home page), I press F5 then it loads.

    Disabling Privacy Badger on google solves it... anyone else have this problem?

    Developer response

    posted 5 years ago
    This kind of behaviour was already seen but could not be reproduced in FF 73. Please add your system information at https://github.com/kkapsner/CanvasBlocker/issues/388. This issue is currently closed but can be reopened.
  • by Firefox user 15429937, 5 years ago
  • by maricn, 5 years ago
    Love this extension. Whitelist feature was not so obvious until I came to write this comment and saw the screenshot with address bar icon :D
    Still, I believe UX might be further simplified. I'm thinking along the lines of Chameleon, FoxyProxy, NoScript, etc with multipage popups.
  • by Firefox user 14546632, 5 years ago
    Fantastic add-on, and something that has been sorely needed for some time.
    But I'd like the ability to whitelist certain sites for troublshooting. I didn't see that option in the settings.

    Thanks, dev!

    Update: Thanks for the info! I see the whitelist now.

    Developer response

    posted 5 years ago
    If something was faked on a page a fingerprint icon appears in the address bar. By clicking on you see more information and you can also whitelist the page there.
  • by Firefox user 15038450, 5 years ago
    I changed my rating.

    Originally I put 1 star because:
    1. https://amiunique.org/ reports me as UNIQUE.
    2. No support email, only github (I don't even know what it is and I do not want to create account only to ask for support).
    Happy to change rating if I receive support (not github but email or phone) and problem is fixed.
    ----------------------------------
    I changed to 4 stars because:
    1. I was explained that it does not matter if I am unique as long as my profile changes each time which, apparently, it does.
    2. The developer contacted me privately even though he's alone and he's not a company or a team. I appreciated that.
    3. I put 4 stars instead of 5 because we have become used to better user interface layouts.
    All in all I am happy and I recommend it.

    Developer response

    posted 5 years ago
    The same issue is discussed at https://addons.mozilla.org/de/firefox/addon/canvasblocker/reviews/1141570/ and https://github.com/kkapsner/CanvasBlocker/issues/154

    In short: it fine to have these sites to report a unique fingerprint as long as the fingerprint changes (which is the case in the default CB settings). You can open up the console (Ctrl + Shift + K) and have a look at the actual fingerprint. There you will see that the protected fingerprints change with each reload.

    Regarding support: github is mainly a code managing service (you can look at the complete source code and history of CB there). But it also offers a requirement and bug tracking feature. As I am only one person I have no time to give individual email (or even phone) support. On github some helping angels can support me. Also it provides an overview of already asked questions and open issues so other people with the same issue can see that it is known and/or what the solution is.
  • by Firefox user 14317733, 6 years ago
  • by Jezze, 6 years ago
    Doesn't make my canvas fingerprint less unique. amiunique.org still tells me that my similarity ratio is below 0.1% which means I have a very unique canvas fingerprint.

    Developer response

    posted 6 years ago
    In the default settings the canvas fingerprint is changed on every page reload (you can test that on http://kkapsner.github.io/CanvasBlocker/test/test.html). Yes - this makes the fingerprint unique but since it is not constant you cannot be tracked.

    If you want further information/discussion please open an issue on https://github.com/kkapsner/CanvasBlocker/issues where we can communicate nmuch easier.

    PS: similar issue on github: https://github.com/kkapsner/CanvasBlocker/issues/154
  • by Firefox user 14037398, 6 years ago
  • by Firefox user 13224783, 7 years ago
  • by piptaz, 7 years ago