[tbb-bugs] #33151 [Applications/Tor Browser]: Broken font rendering in Tor Browser (uneven and inconsistent spacing between glyphs)

[Tor Bug Tracker & Wiki]

#33151: Broken font rendering in Tor Browser (uneven and inconsistent spacing
between glyphs)
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 Reporter:  TrickleSubzeroSpoof       |          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:
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Comment (by Thorin):

 Replying to [ticket:33151 TrickleSubzeroSpoof]:
 > AFAIK, the text should be rendered the same way on all platforms to
 avoid fingerprinting. But if this is platform specific bug, then I can
 provide any info about my hardware/OS/etc. privately to help solving this
 bug.

 - font whitelisting is different per os (windows, linux, mac: not sure
 what android is doing)
 - not everyone necessarily has all fonts in the whitelist: mac should be
 consistent, windows I know has some entropy (differences), and Linux I
 suspect would be the most diverse
 - not everyone has the same version of the font whitelisted

 That said, the webpage's css shows `arial,sans-serif` for the side-bar
 links

 I'm not a font kerning expert, but it looks pretty much identical to me in
 TB vs FF on my windows system - and both are using the same font: Arial -
 I'll attach a pic.

 What OS are you on?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/33151#comment:2>
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