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

#9268: Resizing the browser window does not take size of taskbars and DPI into
account
-------------------------+-------------------------------------------------
     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:           |
-------------------------+-------------------------------------------------

Comment (by joebt):

 OK, ZcbCkyj5 (wow, some name!)

 I installed Torbutton 1.6.11.1.  It fixes TBB starting up w/ the sizing
 buttons off the top of monitor.

 But, referencing other bugs about the design of TBB starting at screen
 multiples of 200x100 - I don't see anything close to that.  So, I'm out in
 the empty parking lot, alone - for every website to ID me?

 Now, when it starts, I've used a screen capture app & reading the capture
 size.
 Depending on whether the TBB "design" opening size of 200x100 is supposed
 to be the entire GUI, or the usable TBB browser pane (sans toolbars) -
 neither is even close to a 200x100 multiple.

 Is the intended behavior that TBB will '''''report''''' a multiple of
 200x100, or in addition to that, users should '''''also see''''' starting
 TBB sizes in 200x100 multiples?  If the latter, it's not happening for me.

 I have Windows system DPI set a bit higher - @ 110 vs. default 96 DPI.
 Even adjusting for that, they're still not close to 200x100 multiple.

  * The full starting TBB GUI, incl. toolbars is ~ 1170px x 1025px.
  * The usable browser pane __below__ the toolbars (incl. the narrow
 borders around apps, that Windows adds) - then starting size is ~ 1170px x
 930px.

 There's some minor error in determining if the screen shot's selection
 line is exactly on the TBB screen edge.  But the size isn't anywhere near
 a multiple of 200x100, regardless of all the possible errors I mentioned.

 For the values of entire starting GUI, if 1170 is rounded to 1200, that's
 6 * 200.  But the value for measured screen height (1025) is '''way
 more''' than 6 * 100.  No matter how much of a reasonable error correction
 is used for DPI changes, error in reported captured screen size, etc.

  * One MAIN question:  When was that design spec for starting screen size
 multiple of 200x100 invented?

 How much has changed since then as to what GUI elements are displayed by
 default in TBB (Firefox) vs. when that design spec was developed?

 No longer have an addon bar.  No longer display a menu bar by default.
 The App button is on the same line as the window size / close buttons (did
 it used to be one line above the size buttons, on the menu bar?), etc.

 I don't know how all that affects the actual starting size vs. reported
 200x100 multiple.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9268#comment:78>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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