Le 11/09/2025 à 14:03, Jim Jackson a écrit :
> Hi,
>
> On Thu, 28 Aug 2025, Didier Kryn wrote:
>
>>> How about Fairphone?
>>>
>>> https://www.fairphone.com/
> ....snip....
>>     More disgusting: the site forum.fairphone.com detects if your browser
>> allows fingerprinting; if not, it declares it obsolete. I didn't check, but
>> this functionality is generally implemented by a connection to cloudfront.
> I use the CanvasBlocker addon in Firefox to prevent fingerprinting, and
> haven't had any problems accessing the fairphone forum site.

    I would suspect CanvasBlocker can be worked around then.
Fingerprinting tries to retrieve hardware information about your
computer, such as characteristics of your graphics card, number and type
of cpu. There are really many. If a blocker prevents these data to be
transfered, the application at cloudfront fails and the comercial sites
declares that your browser is either "obsolete" or simply "not
supported", which, of course, makes no sense, since the http protocol
and the html language are universal standards. This is my own
explanation of what is happenning, coming out of observation. I have
never invessigated what the malignant scripts are doing.

    I suspect that, if you can visit this kind of site with
CanvasBlocker, it means it can be worked-around.

    A very clever fingerprinting blocker would be one which would send
random fake data instead of the true hardware parameters, like a very
clever add-blocker would let the script believe the ad is displayed
while it's completely discarded. But I doubt we're there yet.

--     Didier