[tor-bugs] #9268 [Tor Browser]: Resizing the browser window does not take size of taskbars and DPI into account

[Tor Bug Tracker & Wiki]

#9268: Resizing the browser window does not take size of taskbars and DPI into
account
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     Reporter:  gk       |      Owner:  mikeperry
         Type:  defect   |     Status:  needs_review
     Priority:  major    |  Milestone:
    Component:  Tor      |    Version:
  Browser                |   Keywords:  tbb-fingerprinting, tbb-helpdesk-
   Resolution:           |  frequent, MikePerry201406R, tbb-firefox-patch
Actual Points:           |  Parent ID:
       Points:           |
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Comment (by joebt):

 Thanks.

 > ''You can test whether this inner size is correctly rounded to 200x100
 multiples using...''

 No, those test sites '''don't''' report the TBB opening (partial) screen
 size as a 200x100 multiple.  They never have - in over a yr of testing.
 Not even close.  That's what I've been saying & asking about - in multiple
 bug reports that touch on this, on tor-talk and on Stack Exchange Tor
 forum.

 Just now, w/ Torbutton 1.6.11.1 installed, Browser Spy __initially__
 showed my opening TBB screen "width" & "height" as 1000 & 794.  Odd number
 for the height, but no matter how you correct it (for my system DPI being
 110 vs. 96, etc.), it's not even close to 200x100 multiple.  Again, it
 never is / has been.

 Where (all) should I report this?  If I'm one of a few Tor users that
 sites don't see a 200x100 multiple, then I stick out like a sore thumb.

 Interestingly, after Browser Spy site had been loaded for a bit, it later
 showed TBB screen size 1000x800.

 Again, not close to 200x100 multiple.

 Don't know if the change from 794 to 800 is from the NoScript popup notice
 (bar running width of screen) that JS objects were blocked, that
 disappears after a few sec.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9268#comment:80>
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