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Re: [tor-bugs] #18603 [Applications/Tor Browser]: failIfMajorPerformanceCaveat in a WebGL context might aid in fingerprinting (was: failIfMajorPerformanceCaveat in a WebGL context migth aid in fingerprinting)
#18603: failIfMajorPerformanceCaveat in a WebGL context might aid in fingerprinting
--------------------------------------------+--------------------------
Reporter: gk | Owner: mcs
Type: task | Status: assigned
Priority: Medium | Milestone:
Component: Applications/Tor Browser | Version:
Severity: Normal | Resolution:
Keywords: ff45-esr, TorBrowserTeam201604 | Actual Points:
Parent ID: | Points:
Reviewer: | Sponsor:
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Changes (by mcs):
* status: new => assigned
* cc: brade, tbb-team (added)
* keywords: ff45-esr => ff45-esr, TorBrowserTeam201604
* owner: tbb-team => mcs
Old description:
> https://bugzilla.mozilla.org/show_bug.cgi?id=1164970 implemented
> `failIfMajorPerformanceCaveat` that makes the context creation fail when
> layer acceleration is not supported. We should investigate whether our
> WebGL noramlizing is affected by this.
New description:
https://bugzilla.mozilla.org/show_bug.cgi?id=1164970 implemented
`failIfMajorPerformanceCaveat` that makes the context creation fail when
layer acceleration is not supported. We should investigate whether our
WebGL normalizing is affected by this.
--
Comment:
Kathy and I looked at this. Unless we disable this feature, we think it
could be used as a fingerprinting vector. We will create a patch to pref
it off.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18603#comment:1>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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