Firefox WebRender Hardware Acceleration

[bircoph]

I see the following in about:support (for both firefox-94 and firefox-esr-91 on postmarketos):

Compositing: WebRender (Software)
...
Failure Log
(#0) Error: No GPUs detected via PCI
(#1) Error: glxtest: process failed (received signal 11)

Running firefox from a terminal reveals similar details:

Crash Annotation GraphicsCriticalError: |[0][GFX1-]: No GPUs detected via PCI (t=2.14297) [GFX1-]: No GPUs detected via PCI

Crash Annotation GraphicsCriticalError: |[0][GFX1-]: No GPUs detected via PCI (t=2.14297) |[1][GFX1-]: glxtest: process failed (received signal 11) (t=2.14319) [GFX1-]: glxtest: process failed (received signal 11)

So I assume firefox's internal glxtest should be fixed first.