The browser functionalities are broken after entering and exiting the private window for several times on certain websites

[Softvision-GeluHaiduc]

[Affected Versions]:

• Firefox Reality 1.3-31930328 (rc1)
• Firefox Reality 1.3-31972323 (rc2)

[Affected Platforms]:

• HTC Vive Focus Plus - Android 7.1.2
• Oculus Pacific - Android 7.1.2 (Oculus Go)

[Prerequisites]:

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

[Steps to reproduce]:

1. Open the following web page: https://vr.with.in/watch/the-batmersive-experience
2. Click the play button. (do not enter VR)
3. Click the private window button.
4. Click the "X" button at the top of the view.
5. Repeat step 3 and 4 several times.
6. Click the navigation buttons and observe the behavior.

[Expected results]:

• The navigation buttons are working as expected.

[Actual results]:

• The navigation buttons are clicked but nothing happens.

[Notes]:

• The following functionalities are affected by this issue:
  • The video content is frozen.
  • The audio continues to play even after the browser is closed.
  • The resizing functionality doesn't work properly because of the frozen video.
  • If the private window button is clicked again, the private window is opened with the frozen video.
• The issue is not reproducible if the bookmark or settings buttons are clicked.
• The issue is not reproducible with a youtube video.
• Attached a screen recording of the issue: link

[Softvision-GeluHaiduc]

The issue is reproducible in Firefox Reality 1.3-31972323 (rc2) with the Oculus Go headset.

[MortimerGoro]

I did some research and I think it's related to: https://bugzilla.mozilla.org/show_bug.cgi?id=1561667

The issue happens when we try to resume a GV session running WebGL content (session.setActive(true) and attach it to a display), and we close the previous GV session (I checked that it happens with any of the session.stop() or session.close() calls). If I don't close/stop the previous GV session the new attached GV session runs WebGL correctly

[MortimerGoro]

I pushed GV patch to fix this issue: https://bugzilla.mozilla.org/show_bug.cgi?id=1561667. We can close this when it gets landed

[Softvision-GeluHaiduc]

I have verified that this issue is no longer reproducible with the latest FirefoxReality 1.4-32072251 installed on the Oculus Go headset.
Now, the browser functionalities are not broken after entering and exiting the private window for several times.