After clicking "Quit" in menu, Tor Browser for Android still displays the "Close private tabs?" notification

🐞 Bug Report

Reproduction steps

1. Open Tor Browser for Android, connect to Tor network.
2. Visit any website. (IMPORTANT: Notification won't appear if no website is opened.)
3. Use the "Quit" option in menu to quit browser.

Expected behaviour

The browser closed and the "Close private tabs?" notification disappeared.

Actual behaviour

After hitting "Quit", the "Close private tabs?" notification disappeared for a few seconds, and reappeared after that.

Bookkeeping

• Browser version: Tor Browser for Android 14.5 - 14.5.1 (128.9.0esr) and Tor Browser Alpha 14.5a6(128.9.0esr)
• Browser channel:
  • Release
  • Alpha
  • Nightly
• Distribution method:
  • Installer/archive from torproject.org
  • tor-browser-launcher
  • homebrew
  • other (please specify): Guardian Project
• Operating System:
  • Windows
  • macOS
  • Linux
  • Android
  • Tails
  • Other (please specify):
• Operating System Version: Appeared on Android 13, reproduced on Android 15 (LineageOS)

Browser UI language

English (US)

(By the way, no such thing as about:preferences or about:config exists in Tor Browser for Android, please consider updating bug reporting template.)

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

"Security Level" to "Safest"

Do you have any extra extensions installed?

uBO on Tor Browser for Android, none on Alpha version

Troubleshooting

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?

New. The bug didn't appear until 14.0.9 (128.9.0esr).

Does this bug occur in the Alpha release channel?

Yes. Described as above.

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

Not applicable.

Does this bug occur in Firefox Rapid Release?

Not applicable.

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