#30543: device orientation leaks --------------------------------------------+-------------------------- Reporter: Thorin | Owner: tbb-team Type: defect | Status: new Priority: Medium | Milestone: Component: Applications/Tor Browser | Version: Severity: Normal | Resolution: Keywords: tbb-fingerprinting, tbb-mobile | Actual Points: Parent ID: | Points: Reviewer: | Sponsor: --------------------------------------------+--------------------------
Comment (by Thorin): Orientation wouldn't even be a stable metric, IMO: and most mobile device users would orientate the same per site: i.e it is driven by content? I've never seen it in any fp scripts, TBH. I'm not hardware savvy: but do laptop and desktop support this, e.g with rotating screens. We could ignore android, and only apply orientation to win/mac/linux. i.e least apply landscape to `css media orientation` like we do for the two `css media resolutions`. matchMedia I'm not sure about. And their will be other methods, I'm sure. Or we could not bother. Going full screen will leak orientation. A lot of desktop/laptop users (I assume, once letterboxing is implemented: even if that only enhances rather than replaces new win sizes) will go FS, maximize, or resize to match orientation to get real estate usage: i.e inner window = your orientation. So I think it may be a losing battle. I also wonder how much this may affect functionality on some sites. And lastly, the solution IMO is Tor uptake: e.g tripling the user base etc simplistically negates what we do here now. +1 for not spoofing orientation -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30543#comment:3> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online
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