For å bruke Android-utvidelser trenger du Firefox for Android. For å utforske Firefox for datamaskiner-tillegg, besøk vårt datamaskinernettsted.

Logg inn
Utvidelses-ikon

Omtaler for CanvasBlocker

CanvasBlocker av kkapsner

4,6 stjerner av 5
5
361
4
41
3
20
2
10
1
21
453 omtaler
  • av Firefox-bruker 12934307, 7 år siden
    breaks webpages that require adobe flash on waterfox latest release

    Utviklerrespons

    postet 7 år siden
    Please open an issue at https://github.com/kkapsner/CanvasBlocker/issues with all your details and a reproduction scenario. There we can communicate way better.
  • av Firefox-bruker 13268901, 7 år siden
    What happened to the fingerprint icon up in the toolbar on android FF? It is now gone so how do I know if CB is functioning correctly?

    Utviklerrespons

    postet 7 år siden
    The fingerprint icon should be present if you have notifications enabled and something was faked on the page.

    You can check if CB is working on the test pages (e.g. https://canvasblocker.kkapsner.de/test/test.html - the hashes should change on reload).

    Please open an issue at https://github.com/kkapsner/CanvasBlocker/issues - there we can discuss better.

    This issue is solved in 0.5.5
  • av Firefox-bruker 14097838, 7 år siden
    A must have privacy extension for everyone!
  • av JxReach, 7 år siden

    Utviklerrespons

    postet 7 år siden
    Tell me what you dislike about the new version. Without this information I cannot improve CB.
  • av Firefox-bruker 14242164, 7 år siden
    Great stuff. I think this should be a "featured extension" in the pivacy and security category.
  • av Firefox-bruker 14054127, 7 år siden
    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?

    Utviklerrespons

    postet 7 år siden
    The color change just indicate that something was faked. It's some sort of notification and nothing to worry about.
  • av Detergent, 7 år siden
    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.

    Utviklerrespons

    postet 7 år siden
    Exactly this is the idea behind the fake mode.
  • av kondor, 7 år siden
  • av samyueru_beityosef_benmayumi, 7 år siden
  • av Fleet Command, 7 år siden
    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.

    Utviklerrespons

    postet 7 år siden
    This issue will be fixed in the next version: https://github.com/kkapsner/CanvasBlocker/issues/219
  • av Firefox-bruker 14201700, 7 år siden
  • av Firefox-bruker 14191840, 7 år siden
  • av Sean D, 7 år siden
    You are very hard working person :)
  • av pix0wl, 7 år siden
  • av Firefox-bruker 12654054, 7 år siden
    Excellent add-on! Thanks for your hard work!
  • av Firefox-bruker 14191652, 7 år siden
    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.

    Utviklerrespons

    postet 7 år siden
    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.
  • av zhaqenl, 7 år siden
  • av Firefox-bruker 13202285, 7 år siden
  • av The Beard Below My Chin, 7 år siden
    Nice works.
    Please note I test the audio fingerprint at https://audiofingerprint.openwpm.com/ and it causes browser slowdown.

    Utviklerrespons

    postet 7 år siden
    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.
  • av Firefox-bruker 14156124, 7 år siden
    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

    Utviklerrespons

    postet 7 år siden
    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.
  • av GregDT, 7 år siden
  • av Clemens Ratte-Polle, 7 år siden
    Where can i test the success of CanvasBlocker?

    Does it make problems with twitter header image upload?
    i got probs

    Utviklerrespons

    postet 7 år siden
    You can go to http://kkapsner.github.io/CanvasBlocker/test/test.html and check if the displayed hash changes on every reload.

    I know of no problems with twitter. But if you think that it is CB related please open an issue at https://github.com/kkapsner/CanvasBlocker/issues - there we can communicate much better.
  • av Jezze, 7 år siden
    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.

    Utviklerrespons

    postet 7 år siden
    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
  • av Firefox-bruker 13835690, 7 år siden
    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.

    Utviklerrespons

    postet 7 år siden
    You're welcome.
  • av Mozilla Dev, 7 år siden

    Utviklerrespons

    postet 7 år siden
    Please provide a reason why you gave one star. Maybe I can fix the issue or improve CB with your input.