Re: [tor-bugs] #30647 [Applications/Tor Browser]: Letterboxing and Scrollbars Dimensions

[Tor Bug Tracker & Wiki]

#30647: Letterboxing and Scrollbars Dimensions
---+---
 Reporter:  edgewall   |  Owner:  tbb-team
 Type:  defect | Status:  closed
 Priority:  Medium |  Milestone:
Component:  Applications/Tor Browser   |Version:
 Severity:  Normal | Resolution:  duplicate
 Keywords:  tbb-fingerprinting-resolution  |  Actual Points:
Parent ID: | Points:
 Reviewer: |Sponsor:
---+---
Changes (by tom):

 * status:  new => closed
 * resolution:   => duplicate


Comment:

 I agree with Thorin. While in some situations, it would be nice to have
 the scrollbar outside the letterbox and regain those pixels; that doesn't
 work in many other situations.

 I think the correct fix for this is #22137

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Re: [tor-bugs] #30647 [Applications/Tor Browser]: Letterboxing and Scrollbars Dimensions

[Tor Bug Tracker & Wiki]

#30647: Letterboxing and Scrollbars Dimensions
---+--
 Reporter:  edgewall   |  Owner:  tbb-team
 Type:  defect | Status:  new
 Priority:  Medium |  Milestone:
Component:  Applications/Tor Browser   |Version:
 Severity:  Normal | Resolution:
 Keywords:  tbb-fingerprinting-resolution  |  Actual Points:
Parent ID: | Points:
 Reviewer: |Sponsor:
---+--
Changes (by gk):

 * keywords:   => tbb-fingerprinting-resolution
 * status:  needs_information => new


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Re: [tor-bugs] #30647 [Applications/Tor Browser]: Letterboxing and Scrollbars Dimensions

[Tor Bug Tracker & Wiki]

#30647: Letterboxing and Scrollbars Dimensions
--+---
 Reporter:  edgewall  |  Owner:  tbb-team
 Type:  defect| Status:  needs_information
 Priority:  Medium|  Milestone:
Component:  Applications/Tor Browser  |Version:
 Severity:  Normal| Resolution:
 Keywords:|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+---

Comment (by tom):

 ACK, in my todo list

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Re: [tor-bugs] #30647 [Applications/Tor Browser]: Letterboxing and Scrollbars Dimensions

[Tor Bug Tracker & Wiki]

#30647: Letterboxing and Scrollbars Dimensions
--+---
 Reporter:  edgewall  |  Owner:  tbb-team
 Type:  defect| Status:  needs_information
 Priority:  Medium|  Milestone:
Component:  Applications/Tor Browser  |Version:
 Severity:  Normal| Resolution:
 Keywords:|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+---

Comment (by Thorin):

 Where would the vertical/horizontal scrollbars go when the inner window
 width/height respectively matches the rounding? Scrollbar widths can also
 be gained from within elements, so this is not the solution IMO :)

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Re: [tor-bugs] #30647 [Applications/Tor Browser]: Letterboxing and Scrollbars Dimensions

[Tor Bug Tracker & Wiki]

#30647: Letterboxing and Scrollbars Dimensions
--+---
 Reporter:  edgewall  |  Owner:  tbb-team
 Type:  defect| Status:  needs_information
 Priority:  Medium|  Milestone:
Component:  Applications/Tor Browser  |Version:
 Severity:  Normal| Resolution:
 Keywords:|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+---
Changes (by gk):

 * cc: tom (added)
 * status:  new => needs_information


Comment:

 Tom, what do you think?

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Re: [tor-bugs] #30647 [Applications/Tor Browser]: Letterboxing and Scrollbars Dimensions

[Tor Bug Tracker & Wiki]

#30647: Letterboxing and Scrollbars Dimensions
--+--
 Reporter:  edgewall  |  Owner:  tbb-team
 Type:  defect| Status:  new
 Priority:  Medium|  Milestone:
Component:  Applications/Tor Browser  |Version:
 Severity:  Normal| Resolution:
 Keywords:|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--

Comment (by Thorin):

 You can still get scrollbars without letterboxing, which is applied to the
 inner window not the viewport.

 Duplicate of #22137

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[tor-bugs] #30647 [Applications/Tor Browser]: Letterboxing and Scrollbars Dimensions

[Tor Bug Tracker & Wiki]

#30647: Letterboxing and Scrollbars Dimensions
--+--
 Reporter:  edgewall  |  Owner:  tbb-team
 Type:  defect| Status:  new
 Priority:  Medium|  Component:  Applications/Tor Browser
  Version:|   Severity:  Normal
 Keywords:|  Actual Points:
Parent ID:| Points:
 Reviewer:|Sponsor:
--+--
 Letterboxing's reason of existence is to improve the users' privacy by
 reducing yet another fingerprinting bit. But the solution isn't perfect -
 there are many operating systems and window managers, and countless
 themes. And every one of them can have different scrollbar dimensions -
 which helps to fingerprint the user.

 For example, in a page with a vertical scrollbar my window widths is being
 reported as 984px instead of 1000px with Tor Browser's "content window
 dimensions rounding" (#14429), or 1184px instead of 1200px with FF67's
 letterboxing.

 Would it be possible to maybe move the scrollbars (both vertical and
 horizontal) out of the "letterbox"?

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