[tor-bugs] #32325 [Applications/Tor Browser]: Allow Letterboxing opt-in/out

[Tor Bug Tracker & Wiki]

#32325: Allow Letterboxing opt-in/out
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 Reporter:  antonela                             |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  new
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  ux-team, tbb-9.0-issues,             |  Actual Points:
  TorBrowserTeam202001                           |
Parent ID:  #32324                               |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by Thorin):

 Replying to [comment:5 pospeselr]:
 > If we're down with this design I should be able to knock it out pretty
 quickly.

 - nits?: Letterboxing helps prevent screen and window fingerprinting by
 adding light or dark theme margins to the browser window.
    * added window, it's not just screen
    * added the themed color upcoming change
    * removed redundant words = shorter and maybe sweeter :)
 - learn more?: maybe https://support.torproject.org/tbb/maximized-
 torbrowser-window/

 I feel the above link content could possibly be improved: "white" margins
 aside, e.g. recommendation that users stay at the opened size (the biggest
 bucket), but that if their threat model
 (https://2019.www.torproject.org/about/torusers.html.en) allows it, resize
 for usability (and maybe mix it up: try different sizes in different
 windows, on different days).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32325#comment:6>
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