The ETP, DRM, WebXR and Pop-UP Blocked buttons are wrongly displayed for libraries when opened over a website

[Softvision-RemusDranca]

[Affected Versions]:

• Firefox Reality version 10 RC4 (2999129).

[Affected Platforms]:

• Pico Neo 2 - Android - 8.1.0
• Oculus Quest - Android 7.1.1
• HTC Vive Focus - Android 7.1.2

[Prerequisites]:

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

[Steps to reproduce]:

1. Navigate to a website so that the ETP icon is displayed.
2. Open one of the libraries using the tray buttons.
3. Observe if the ETP shield icon is displayed.

[Expected results]:

• The icon is not displayed.

[Actual results]:

• The icon is displayed.

[Notes]:

• This issue is reproducible when opening any of the libraries (History, Bookmarks, Downloads).
• If the ETP, DRM, WebXR and Pop-UP Blocked are enabled/disabled the changes are done on the website opened in the background.
• This issue is not reproducible if the buttons are not displayed before opening the libraries.
• Attached is a screen recording of the issue: link.

[Softvision-RemusDranca]

I have verified this issue and it's no longer reproducible with the Firefox Reality version 10 RC5 (e84d3c9). The buttons are no longer displayed when the libraries are opened.

Tested on HTC Vive Focus (Android 7.1.2), Oculus Quest (Android 7.1.1) and Pico Neo 2 (Android - 8.1.0) devices.