A crash occurs when dismissing the Paste Context Menu by using the controller or clicking outside the window

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[Affected Versions]:

• Firefox Reality version 9-40360119 (b73b391)

[Affected Platforms]:

• Oculus Quest - Android 7.1.1
• Oculus Go - Android 7.1.2
• HTC Vive Focus Plus - Android 7.1.2
• HTC Vive Focus - Android 7.1.2

[Prerequisites]:

• The headset is turned on and the browser is installed.

[Steps to reproduce]:

1. Go to https://en.wikipedia.org/wiki/Main_Page
2. Copy a link/static text/editable text.
3. Focus the empty search field at the top of the page.
4. Press the trigger button on the controller to display the Paste Context Menu.
5. Press the back button on the controller to dismiss the menu.

[Expected results]:

• The Paste context menu is dismissed.

[Actual results]:

• The app crashes.

[Notes]:

• This issue is reproducible for other websites as well.
• This issue is not reproducible for the other copy/paste/select all/cut menus, including those in the awesomebar.
• Attached is a crash report of the issue.
• Attached is a recording of the issue.

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After further investigation:

• The issue is also reproducible when dismissing the menu by clicking outside the window.
• The issue is also reproducible for the Paste/Select All menu.

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I have verified this issue and it is no longer reproducible with the latest Firefox Reality version 9-40371914 (083b65c) build.
The app no longer crashes when dismissing these menus either by using the controller or clicking outside the window.
Tested on Oculus Go (Android 7.1.2), Oculus Quest (Android 7.1.1), HTC Vive Focus Plus (Android 7.1.2) and HTC Vive Focus (Android 7.1.2).