creating a new profiles causes crash ENOTTY

🐞 Bug Report

Reproduction steps

Use the TBB tarball on Slackware 15. Open about:profiles and create a new profile. When clicking finish, it will crash with a segfault ENOTTY

On FreeBSD, this happens too. I use FreeBSD 15 and tor-browser via pkg (this is 16.0a1).

Expected behaviour

Do not segfault.

Actual behaviour

Segfault, browser crashed.

User impact

Bookkeeping

• Browser version:
• Browser channel:
  • Release
  • Alpha
  • Nightly
• Distribution method:
  • Installer/archive from torproject.org
  • tor-browser-launcher
  • homebrew
  • other (please specify):tor-browser via pkg from FreeBSD
• Operating System:
  • Windows
    • Version:
  • macOS
    • Version:
  • Linux
    • Distribution + Version: Slackware 15 amd64
    • Desktop Environment + Version: KDE
  • Android
    • Version:
    • Device:
  • Tails
  • Other (please specify): FreeBSD 15 amd64

Browser UI language

English

Have you modified any of the settings in about:preferences or about:config? If yes, which ones?

No

Do you have any extra extensions installed?

Troubleshooting

I can provide strace output if needed.

Does this bug occur in a fresh installation?

Yes

Is this bug new? If it is a regression, in which version of the browser did this bug first appear?

Does this bug occur in the Alpha release channel?

Does this bug occur in Firefox ESR (Desktop only)?

No

Does this bug occur in Firefox Rapid Release?

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