The inactive windows wrongly remain displayed in immersive mode if entered from a new tab

[Softvision-GeluHaiduc]

[Affected Versions]:

• Firefox Reality version 6 RC1 (a83b2bf)

[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 headset is turned on and the browser is opened.
• Make sure to have at least 2 windows opened.

[Steps to reproduce]:

1. Click the “View Tabs” button from the menu tray.
2. Click the “Open New Tab” button.
3. Navigate to any 360 video.
4. Enter immersive mode and observe the behaviour.

[Expected results]:

• Immersive mode is entered and the windows disappear.

[Actual results]:

• Immersive mode is entered and the windows remain displayed.

[Additional Notes]:

• The multiwindow controls for the active window are displayed.
• In this state the multiwindow controls and menu tray are actionable and if they are interacted with, breaks the UI and also blocks some functionalities.
• If the back button on the controller is pressed immersive mode is exited.
• If the “Back” button on the on screen controls is clicked immersive mode is exited but only the multiwindow controls remain displayed.
• The issue is not reproducible if immersive mode is entered from a new window.
• Attached the logcat file of the issue here.
• Attached a screen recording of the issue here.

[Softvision-GeluHaiduc]

I have verified that this issue is no longer reproducible with the latest Firefox Reality version 6 RC2 (6725754) installed on the Oculus Go, Quest, HTC Vive Focus and Focus Plus headsets.
Now, the inactive windows are NOT displayed in immersive mode if entered from a new tab.