The app crashes after clicking the "Show" button for pop-ups from a website opened from tabs view in a new window

[Softvision-GeluHaiduc]

[Affected Versions]:

• Firefox Reality version 7 RC5 (0706b65)

[Affected Platforms]:

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

[Prerequisites]:

• The Firefox Reality browser is opened.
• Make sure the "Block Pop-Up Windows" option is enabled.

[Steps to reproduce]:

1. Navigate to the following website: "http://popuptest.com/” and click on a pop-up technique.
2. Click the “Pop-Up Blocked” notification and click the “Show” button.
3. Click the “+” button in the menu tray.
4. Click the “View Tabs” button in the menu tray and open the tab with the selected pop-up technique from strep 1.
5. Click the “Pop-Up Blocked” notification and click the “Show” button.
6. Observe the behaviour.

[Expected results]:

• The pop-ups are opened.

[Actual results]:

• The app crashes.

[Notes]:

• The issue is only reproducible if the pop-up technique is opened from the tab view.
• The issue is also reproducible if the “Don’t show again for this site” option is clicked on step 5.
• The issue is also reproducible by having the "Block Pop-Up Windows" option disabled.
• The issue is not reproducible if the pop-up technique is opened from bookmarks or history.
• All the opened tabs are closed after the crash.
• Attached a screen recording of the issue here.
• Attached the logcat file of the issue here.
• The crash report can be found here.

[Softvision-GeluHaiduc]

I have verified that this issue is no longer reproducible with the latest Firefox Reality version 7 RC6 (b01367a) installed on the Oculus Go, Quest, HTC Vive Focus and Focus Plus headsets.
Now, the app does not crash after clicking the "Show" button for pop-ups from a website opened from tabs view in a new window.