WebGL does not work in snap firefox

The glxinfo output on my desktop, where WebGL also does not work after upgrading to Ubuntu 22.04 LTS

troels@troels-desktop:~$ glxinfo | grep OpenGL
OpenGL vendor string: AMD
OpenGL renderer string: AMD Radeon RX Vega (vega10, LLVM 13.0.1, DRM 3.42, 5.15.0-27-generic)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 22.0.1
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 4.6 (Compatibility Profile) Mesa 22.0.1
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 22.0.1
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:

I don't know how to MOZ_LOG it to filter all the relevant info.

Thank you for your bug report. Which version of the snap do you use? Is that a wayland or xorg session?

Can you open about:support in a tab, click the button to copy the raw data to the clipboard, and attach it here?

about:support will tell you if Firefox is using "Wayland" or "Xwayland". The first option is better but currently not the default. To get a native Wayland experience you can do:

  sudo snap refresh --beta firefox

Unfortunately it didn't help to enable the beta.

I added the about:support output

As I have reported in https://bugs.launchpad.net/ubuntu/+source/gdm3/+bug/1968929?comments=all I have the same bug, while running on Ubuntu 22.04 when forcing Wayland. I have Firefox Beta from tar, so it's not just snap issue.

This problem also occurred to me using a fresh install of Ubuntu 22.04.

Firefox throws an error:
glxtest: Could not connect to wayland socket

Firefox falls back to xwayland. I noticed it as all the text was unsharp using fractional scaling.
The problem also occurred when removing firefox snap and installing it as flatpak.

Using firefox-esr (91.8) as snap solves the problem.

It works now in snap Firefox 102.0b2 (64-bit) on Ubuntu 22.04 LTS.

Troels, according to comment #6 this wasn't working with the beta snap when it was version 100, and it's now working at version 102. Can you test again the stable channel (currently at version 101) and let us know whether this is working there?

"snap info firefox" returns the following: (version appears to be 102.0b2-1)

name: firefox
summary: Mozilla Firefox web browser
publisher: Mozilla✓
store-url: https://snapcraft.io/firefox
contact: https://support.mozilla.org/kb/file-bug-report-or-feature-request-mozilla
license: unset
description: |
  Firefox is a powerful, extensible web browser with support for modern web
  application technologies.
commands:
  - firefox
  - firefox.geckodriver
snap-id: 3wdHCAVyZEmYsCMFDE9qt92UV8rC8Wdk
tracking: latest/beta
refresh-date: 3 days ago, at 21:57 CEST
channels:
  latest/stable: 101.0-2 2022-05-31 (1406) 170MB -
  latest/candidate: 101.0-2 2022-05-29 (1406) 170MB -
  latest/beta: 102.0b3-1 2022-06-03 (1422) 169MB -
  latest/edge: 103.0a1 2022-06-04 (1427) 179MB -
  esr/stable: 91.10.0esr-1 2022-05-31 (1391) 161MB -
  esr/candidate: 91.10.0esr-1 2022-05-23 (1391) 161MB -
  esr/beta: ↑
  esr/edge: ↑
installed: 102.0b2-1 (1415) 169MB -

It also appears to be working with Firefox 101.0-2

I experience the same, should I open a new bug report?

Firefox (snap) version: 112.0.2-1

$ glxinfo | grep OpenGL
OpenGL vendor string: Intel
OpenGL renderer string: Mesa Intel(R) UHD Graphics (CML GT2)
OpenGL core profile version string: 4.6 (Core Profile) Mesa 22.2.5
OpenGL core profile shading language version string: 4.60
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 4.6 (Compatibility Profile) Mesa 22.2.5
OpenGL shading language version string: 4.60
OpenGL context flags: (none)
OpenGL profile mask: compatibility profile
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.2 Mesa 22.2.5
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.20
OpenGL ES profile extensions:

> I experience the same, should I open a new bug report?

Yes please.