The app crashes when clearing cached web content and cookies along site data one after another

[Softvision-RemusDranca]

[Affected Versions]:

• Firefox Reality version 11 RC3 (f645302).

[Affected Platforms]:

• Oculus Quest - Android 7.1.1
• HTC Vive Focus - Android 7.1.2
• Pico Neo2 - Android 8.1.0

[Prerequisites]:

• The Firefox Reality browser is open.

[Steps to reproduce]:

1. Enter in Private Browsing.
2. Open the Privacy and Security card.
3. Click one after another the Clear Data button for "Cookies & Site data" and "Cached Web Content".
4. Observe the behavior.

[Expected results]:

• The the data is cleared an the page opened in the window is refreshed.

[Actual results]:

• The app crashes.

[Notes]:

• The issue is also reproducible if only one of the Clear Data buttons is clicked 2 times.
• I was only able to reproduce this once in normal browsing, when I first encountered the issue.
• The issue is always reproducible while in Private Browsing.
• I was not able to reproduce this issue in the production v10 version of the app.
• Attached is a screen recording, logcat and the crash report of the issue:
  • Screen Recording: link.
  • Crash Report: link.
  • Logcat: link.

[Softvision-RemusDranca]

I have verified this issue and it's no longer reproducible with Firefox Reality version 11 RC5 (c28ddb2). The app no longer crashes when clearing cached web content and cookies along site data one after another.

Tested on Oculus Quest (Android 7.1.1), HTC Vive Focus (Android 7.1.2), and Pico Neo2 (Android - 8.1.0).