The app has bad performance issues and it's functionalities don't work properly after clearing cookies/site data or the cached web content

[Softvision-RemusDranca]

[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.

[Steps to reproduce]:

1. Go to Settings and open the Privacy & Security card.
2. Click the "Clear Data" button for the "Cookies and Site Data" or the "Cached Web Content" option
3. Dismiss the menu and navigate to a website or check other functionalities (ex: Resize, Bookmark, Tray).
4. Observe the behavior.

[Expected results]:

• The website is rendered correctly and all functionalities work as expected.

[Actual results]:

• The website is hardly loading, major functionalities are not working properly and the UI is affected.

[Notes]:

• Only the opened windows are affected by this issue.
• I also encountered this behavior when the Tracking Protection option is enabled or disabled. This issue is documented in bug: The app has bad performance issues and it's functionalities don't work properly after disabling or enabling Tracking Protection #2121.
• Attached are a screen recording of the issue along with the logcat file:
  - Screen Recording: link
  - Logcat: link

[bluemarvin]

I think this is a dupe of #2121 I will verify.

[bluemarvin]

I have verified that the issue fixed by #2125 is the same issue.

[Softvision-RemusDranca]

I have verified this issue and it's no longer reproducible with the Firefox Reality 6-33052017 (6725754) build.
Tested on the Oculus Quest (Android 7.1.1), Oculus Go (Android 7.1.2), HTC Vive Focus Plus (Android 7.1.2) and HTC Vive Focus (Android 7.1.2) devices.