HTML5 Canvas Fingerprinting

Discussion in 'privacy general' started by Sampei Nihira, May 30, 2016.

  1. NiteRanger

    NiteRanger Registered Member

    Joined:
    Nov 15, 2016
    Posts:
    389
    Location:
    Far East
    Hi

    Thank you. After setting to 'block readout API' I got the result you posted.

    So either way, block readout API or fake readout API, I'm still safe from canvas fingerprints

    BTW, any ways to protect from other types of fingerprints besides canvas like in ScriptSafe (for Chrome browser)?
     
  2. Krusty

    Krusty Registered Member

    Joined:
    Feb 3, 2012
    Posts:
    4,698
    Location:
    Among the gum trees
    Blocking fingerprinting is actually a fingerprint itself. Better to fake it.
     
  3. hawki

    hawki Registered Member

    Joined:
    Dec 17, 2008
    Posts:
    3,139
    Location:
    DC Metro Area
    FWIW:

    CanvasBlocker v 0.4.0.2 not working for me in FF 56
     
  4. zmechys

    zmechys Registered Member

    Joined:
    Dec 29, 2012
    Posts:
    558
    Location:
    usa
    1. This morning, I received an ad from Abelssoft about AntiBrowserSpy 2018 on sale.

    "...we developed the new AntiBrowserSpy 2018. The software disabled every function related to espionage and additionally offers a protection shield for every important place. Thus, no data is divulged anymore."

    Has anybody used it?
     
  5. Minimalist

    Minimalist Registered Member

    Joined:
    Jan 6, 2014
    Posts:
    7,351
    Location:
    EU • SLO
    https://nakedsecurity.sophos.com/2017/10/30/firefox-takes-a-bite-out-of-the-canvas-super-cookie/
     
  6. mood

    mood Registered Member

    Joined:
    Oct 27, 2012
    Posts:
    2,867
    CanvasBlocker v0.4.1 Released (November 12, 2017)
    Download (AMO)
    changes:
    - improved design of the page action display
    - Enabled Firefox ESR
    - persistent random generator data is always stored in the settings but cleared on restart if the store flag is not set
    - cleaned up the options page

    new features:
    - setting to set an interval to clear the persistent random generator data
    - setting for the ask deny mode
    - ask only once can now also combine the API-types

    fixes:
    - unnecessary check for context type in getImageData broke websites
    - getContext was not asked in ask mode.
     
  7. Sampei Nihira

    Sampei Nihira Registered Member

    Joined:
    Apr 7, 2013
    Posts:
    800
    Location:
    Italy
    Immagine.JPG
     
    Last edited: Nov 13, 2017 at 6:47 AM
  8. mood

    mood Registered Member

    Joined:
    Oct 27, 2012
    Posts:
    2,867
    Yep, it doesn't work on https://blog.malwarebytes.com/
    I have tested it with Firefox and Firefox ESR and CanvasBlocker 0.4.1 (0.3.8 works)
    Edit: New Version - 0.4.2 and now it works
     
    Last edited: Nov 13, 2017 at 7:45 PM
  9. Sampei Nihira

    Sampei Nihira Registered Member

    Joined:
    Apr 7, 2013
    Posts:
    800
    Location:
    Italy
    Last edited: Nov 13, 2017 at 8:44 AM
  10. Sampei Nihira

    Sampei Nihira Registered Member

    Joined:
    Apr 7, 2013
    Posts:
    800
    Location:
    Italy
  11. mood

    mood Registered Member

    Joined:
    Oct 27, 2012
    Posts:
    2,867
    CanvasBlocker v0.4.2 Released (November 14, 2017)
    Download (AMO)
     
  12. Sampei Nihira

    Sampei Nihira Registered Member

    Joined:
    Apr 7, 2013
    Posts:
    800
    Location:
    Italy
    Last edited: Nov 14, 2017 at 11:36 AM
  13. Sampei Nihira

    Sampei Nihira Registered Member

    Joined:
    Apr 7, 2013
    Posts:
    800
    Location:
    Italy

    Does not work well:

    https://addons.mozilla.org/en-US/firefox/addon/canvasblocker/reviews/

    the biggest problem is with the images.
    I can not make a direct example to the developer for the content of the images.
    Almost certainly someone will make a report in the future.
    I stay with Canvas Defender.
     
  14. mood

    mood Registered Member

    Joined:
    Oct 27, 2012
    Posts:
    2,867
    CanvasBlocker - the issue with https://www.adidas.it/ has been fixed