[tor-bugs] #30113 [Applications/Tor Browser]: Tor Browser English and Tor Browser X(lang other) is fingerprintable!

[Tor Bug Tracker & Wiki]

#30113: Tor Browser English and Tor Browser X(lang other) is fingerprintable!
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 Reporter:  cypherpunks               |          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:
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Comment (by Thorin):

 FYI:
 I downloaded the latest German stable 64bit for Windows

 checking default prefs I see
 - `intl.locale.requested` - `de`
 - `intl.accept_languages` - `en-US`
 - `javascript.use_us_english_local` - `true`
 - `intl.regional_prefs.use_os_locales` - `false`

 Under options>general>language ... there are only two items (in this
 order)
 - English/Vereinigte Staate von Amerkia [`en-US`]
 - Englisch [`en`]

 All these look good to me (except not sure about `intl.locale.requested` -
 I always have mine set as en-US, but then English is **MY** language, and
 I'm not sure where/how exactly requested languages get picked up on: but
 it's a usability issue: not everyone speaks English)

 Results on fpjs2 are "en-US"
 Results on
 https://ghacksuserjs.github.io/TorZillaPrint/TorZillaPrint.html#language
 are
 - languages: `en-US,en" and all the rest are `en-US`

 Cannot replicate

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30113#comment:2>
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