[tbb-bugs] #28790 [Applications/Tor Browser]: Webpage size shouldn’t depend on browser chrome

[Tor Bug Tracker & Wiki]

#28790: Webpage size shouldn’t depend on browser chrome
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 Reporter:  dante01123  |          Owner:  tbb-team
     Type:  defect      |         Status:  new
 Priority:  Medium      |      Component:  Applications/Tor Browser
  Version:              |       Severity:  Normal
 Keywords:              |  Actual Points:
Parent ID:              |         Points:
 Reviewer:              |        Sponsor:
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 Tor Browser 8.0.3 (64 bits, Windows 10) has a default window size of 1002
 × 995 pixels.

 When enabling the Bookmarks Toolbar (i.e. making it always visible), the
 browser window stays the same size, thus reducing the size of the webpage
 (and helping fingerprinting).

 This also happens with the Menu Toolbar (and is arguably worse for
 fingerprinting, because the resize happens interactively on keypress, e.g.
 Alt + F) and the Bookmarks sidebar.

 To keep the webpages the same size for all the users, I propose that
 enabling toolbars and sidebars also extend the size of the browser window
 by an appropriate amount.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28790>
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