[tbb-dev] TBB 6.0.5 / screen resolution and color depth

Georg Koppen gk at torproject.org
Thu Sep 22 19:03:00 UTC 2016

> if javascript is allowed, according to
> http://www.whatismyscreenresolution.com/ and
> https://panopticlick.eff.org/ the size of the TBB window is reported
> back.  if the size of the window is changed, the new size is reported to
> the test sites, making the browser fingerprint more unique.  if i
> maximize the TBB window, i receive a warning about tracking, but again
> the size reported back to the test sites isn't the screen's resolution
> but still the window size.  seems to me this value should be spoofed to
> some common value like 1024x768 no matter what size the TBB window is

Spoofing the window consistently is probably not possible as there are
numerous ways to find out the dimensions of your actual window size.
Thus, making sure you get a properly rounded window size seems to be the
easier route to mitigate fingerprinting.


> tbb-dev mailing list
> tbb-dev at lists.torproject.org
> https://lists.torproject.org/cgi-bin/mailman/listinfo/tbb-dev

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