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In Firefox, setting privacy.resistFingerprinting = true in about:config fixes the canvas leak and possibly the audio leak. It's part of a push to bring into Fir

In Firefox, setting privacy.resistFingerprinting = true in about:config fixes the canvas leak and possibly the audio leak. It's part of a push to bring into Firefox privacy features from the TOR project. https://wiki.mozilla.org/Security/Fingerprinting https://wiki.mozilla.org/Security/Fingerprinting

stinos 7y ago
I really want to do this, but last time I checked it also leads to FF sending UTC time back to sites (or something like that), resulting in showing non-local time for your own and other interactions on pretty much all sites like github/slack/... Fairly annoying. I hope this becomes a separate setting at one point.
- arjunbajaj 7y ago
  I enabled it and Todoist would show me a dialog on every page reload to set my timezone to UTC. After I realized that resistFingerprinting was causing it, I had to disable it. It would be nice if the settings inside resistFingerprinting were configurable. I understand that the point of it is to make every browser look the same to analytics engine, but having timezones and zoom levels reset is not the best thing.
  - jmiserez 7y ago
    Or file a bug report with Todoist. Showing a dialog on every page is not very user friendly of them.
animesh 7y ago
I don't know about fixing canvas and audioleak, but it reset browser zoom to 100% on every load of any website say HN. This is pretty annoying.
- iudqnolq 7y ago
  Try this recommended extension: https://addons.mozilla.org/en-US/firefox/addon/zoom-page-we/ https://addons.mozilla.org/en-US/firefox/addon/zoom-page-we/
sgn 7y ago
Firefox 58+ blocks canvas by default. We don't need to change about:config for Canvas tracking. Not sure about the status of AudioContext tracking, though.
- iudqnolq 7y ago
  Are you sure about this? SO says no: https://superuser.com/questions/1416419/how-can-i-block-html-canvas-fingerprinting-in-firefox-via-permissions https://superuser.com/questions/1416419/how-can-i-block-html...

stinos 7y ago

I really want to do this, but last time I checked it also leads to FF sending UTC time back to sites (or something like that), resulting in showing non-local time for your own and other interactions on pretty much all sites like github/slack/... Fairly annoying. I hope this becomes a separate setting at one point.

arjunbajaj 7y ago
I enabled it and Todoist would show me a dialog on every page reload to set my timezone to UTC. After I realized that resistFingerprinting was causing it, I had to disable it. It would be nice if the settings inside resistFingerprinting were configurable. I understand that the point of it is to make every browser look the same to analytics engine, but having timezones and zoom levels reset is not the best thing.
- jmiserez 7y ago
  Or file a bug report with Todoist. Showing a dialog on every page is not very user friendly of them.

animesh 7y ago

I don't know about fixing canvas and audioleak, but it reset browser zoom to 100% on every load of any website say HN. This is pretty annoying.

iudqnolq 7y ago
Try this recommended extension: https://addons.mozilla.org/en-US/firefox/addon/zoom-page-we/ https://addons.mozilla.org/en-US/firefox/addon/zoom-page-we/

sgn 7y ago

Firefox 58+ blocks canvas by default. We don't need to change about:config for Canvas tracking. Not sure about the status of AudioContext tracking, though.

iudqnolq 7y ago
Are you sure about this? SO says no: https://superuser.com/questions/1416419/how-can-i-block-html-canvas-fingerprinting-in-firefox-via-permissions https://superuser.com/questions/1416419/how-can-i-block-html...