[Bug 1905054] [NEW] Firefox 83 Breaks WebGL

[Pat Suwalski]

Public bug reported:

Upon upgrading from Firefox 82 to to Firefox 83, WebGL stops working.
Ubuntu 20.10 with Wayland.

When I try to launch a webGL game:
Failed to create WebGL context: failIfMajorPerformanceCaveat: Compositor is not hardware-accelerated.

Specifically Pixi says:
Error: WebGL unsupported in this browser, use "pixi.js-legacy" for fallback canvas2d support.

Downgrading to Firefox 82 works. Not sure if this is an Ubuntu build
issue or Firefox, so I also filed upstream as well:
https://bugzilla.mozilla.org/show_bug.cgi?id=1678652

I need this functionality for work, and pinning to version 82 will be
problematic in the long-term.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New

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Title:
  Firefox 83 Breaks WebGL

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