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Ulasan untuk CanvasBlocker

CanvasBlocker oleh kkapsner

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358 ulasan
  • oleh Pengguna Firefox 14054127, 7 tahun yang lalu
    Nice, but the toolbar icon changes color sometimes (red/green). What do the different colors mean?
    Green = I'm save, red = I'm not protected? And what do I have to do for it to protect me again?

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    dikirim 7 tahun yang lalu
    The color change just indicate that something was faked. It's some sort of notification and nothing to worry about.
  • oleh Detergent, 7 tahun yang lalu
    I tested this addon with the Panopticlick test from the EFF, and when I check the 'full results' it shows that the hash values are changed every time I have the addon enabled. So I guess it's basically ruining it for people who use these values to track you.

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    dikirim 7 tahun yang lalu
    Exactly this is the idea behind the fake mode.
  • oleh kondor, 7 tahun yang lalu
  • oleh samyueru_beityosef_benmayumi, 7 tahun yang lalu
  • oleh Fleet Command, 7 tahun yang lalu
    It is great, but it'd be much better if the Mozilla Add-ons link embedded in it was language-agnostic. Currently, it is to the German version of the site.

    Balasan pengembang

    dikirim 7 tahun yang lalu
    This issue will be fixed in the next version: https://github.com/kkapsner/CanvasBlocker/issues/219
  • oleh Pengguna Firefox 14201700, 7 tahun yang lalu
  • oleh Pengguna Firefox 14191840, 7 tahun yang lalu
  • oleh Sean D, 7 tahun yang lalu
    You are very hard working person :)
  • oleh pix0wl, 7 tahun yang lalu
  • oleh Pengguna Firefox 12654054, 7 tahun yang lalu
    Excellent add-on! Thanks for your hard work!
  • oleh Pengguna Firefox 14191652, 7 tahun yang lalu
    Very nice works.
    But it may not pass detective on test page http://101.37.204.139:8080/uapost.html.when try times test, it may enter an endless loop and Let the browser stop working.

    Balasan pengembang

    dikirim 7 tahun yang lalu
    This page doen't even work when no addon at all is installed... but to discuss this further please open an issue at https://github.com/kkapsner/CanvasBlocker/issues
    Communication is much easier there.
  • oleh zhaqenl, 7 tahun yang lalu
  • oleh Pengguna Firefox 13202285, 7 tahun yang lalu
  • oleh The Beard Below My Chin, 7 tahun yang lalu
    Nice works.
    Please note I test the audio fingerprint at https://audiofingerprint.openwpm.com/ and it causes browser slowdown.

    Balasan pengembang

    dikirim 7 tahun yang lalu
    I know - this page is not written in a peformant way. You can test the audio fingerprint at http://kkapsner.github.io/CanvasBlocker/test/audioTest.html as well.
  • oleh Pengguna Firefox 14156124, 7 tahun yang lalu
    Nice works.
    Please note it does not detect (and block) the code embedded in a url through the
    "data:text/html" directive.
    I don't know if this method it's exploitable in a web page

    example: paste the following code on your navigation bar
    (It's a dots wave single pixel plotter, so it uses getImageData and it works even if you block the readout API):

    edit: sample code moved to pastebin (sorry, pasting the code here does not works):
    https://pastebin.com/pFvdgKNN

    Balasan pengembang

    dikirim 7 tahun yang lalu
    Good point. I will see if this is exploitable. But please open an issue at https://github.com/kkapsner/CanvasBlocker/issues where we can discuss the implications and findings. Also communication is much easier there.
  • oleh GregDT, 7 tahun yang lalu
  • oleh Pengguna Firefox 13835690, 7 tahun yang lalu
    Thank you for this extension (and for keeping it opensource). Nowadays it's getting harder and harder to get a sense of real privacy. CanvasBlocker + AdGuard for Windows + Privacy Badger + HTTPS Everywhere + custom user.js helps me feel safer on a growing data collection frenzy.

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    dikirim 7 tahun yang lalu
    You're welcome.
  • oleh ©®°˜, 7 tahun yang lalu
    100% unique mean that is not really natural, canvas should not be unique but changed in order to be natural.
    Unique canvas fingerprints will do much worse.
    Is like you said you have a device that never exist.

    To better understand how this work :
    Google already have a full database with all kind of canvas signatures from all worldwide devices (iphone, android, computers, etc...), and if your canvas signature will not match on them database then you fail, it is a prove that your canvas is fake. If you try to spoof the signature then image pixel parameters will not match and again you fail so is almoust imposible to pass canvas.

    On default settings may make it pass the google test.

    For example google will not ask for SMS confirmation when a new gmail account is created because he trust the device you use.

    Most of people must understand why unique signatures is bad practice and all softwares that spoof parameters will make traking services to detect the device much easy

    Balasan pengembang

    dikirim 7 tahun yang lalu
    Please open an issue at https://github.com/kkapsner/CanvasBlocker/issues where we can discuss this. AMOs rating comments are too limited to have a good conversation.

    One small comment on unique signatures: they are not bad by itself as long as they are not persistend (i.e. the timestamp you connect to the server is very likely to be a unique signature but it's not persistent). This is the case in the CB default settings.
  • oleh Pengguna Firefox 14039775, 7 tahun yang lalu
  • oleh Pengguna Firefox 12808354, 7 tahun yang lalu
    Works Fine
  • oleh Pengguna Firefox 13965824, 7 tahun yang lalu
    It's doing it's job
  • oleh Pengguna Firefox 13954923, 7 tahun yang lalu
    Excellent.
  • oleh Gummi, 7 tahun yang lalu
    Can't seem to get version 0.4.4b working with Firefox ESR 52.7.2, there's just no icon visible anywhere on the UI.

    Edit: My bad! I remember that this addon had an icon before but nowadays it hasn't. Works great!

    Balasan pengembang

    dikirim 7 tahun yang lalu
    This Addon does not have an icon that is always visible. Only a fingerprint icon is displayed in the adress bar when some canvas data was faked for the web page. You can test at http://kkapsner.github.io/CanvasBlocker/test/test.html

    If you still think that it's not working properly try version 0.4.4a and open a new issue at https://github.com/kkapsner/CanvasBlocker/issues

    EDIT: no problem. Glad that it works for you.
  • oleh Pengguna Firefox 13837360, 7 tahun yang lalu
    Keep up the good work and thank you.
  • oleh Pengguna Firefox 13870378, 7 tahun yang lalu