User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/114.0

Steps to reproduce:

Install Firefox Nightly from PPA (https://launchpad.net/~ubuntu-mozilla-daily/+archive/ubuntu/ppa)

Actual results:

Firefox shows this when launched from the terminal:

[GFX1-]: FireTestProcess failed: Failed to spawn child process “/usr/lib/firefox-trunk/glxtest” (No such file or directory)

Crash Annotation GraphicsCriticalError: |[0][GFX1-]: FireTestProcess failed: Failed to spawn child process “/usr/lib/firefox-trunk/glxtest” (No such file or directory)
(t=0.109088) [GFX1-]: FireTestProcess failed: Failed to spawn child process “/usr/lib/firefox-trunk/glxtest” (No such file or directory)

Crash Annotation GraphicsCriticalError: |[0][GFX1-]: FireTestProcess failed: Failed to spawn child process “/usr/lib/firefox-trunk/glxtest” (No such file or directory)
(t=0.109088) |[1][GFX1-]: glxtest: ManageChildProcess failed
(t=0.109154) [GFX1-]: glxtest: ManageChildProcess failed

Crash Annotation GraphicsCriticalError: |[0][GFX1-]: FireTestProcess failed: Failed to spawn child process “/usr/lib/firefox-trunk/glxtest” (No such file or directory)
(t=0.109088) |[1][GFX1-]: glxtest: ManageChildProcess failed
(t=0.109154) |[2][GFX1-]: No GPUs detected via PCI
(t=0.109165) [GFX1-]: No GPUs detected via PCI

Expected results:

Able to use WebGL

Looks like this is a regression from https://bugzilla.mozilla.org/show_bug.cgi?id=1787182 (specifically https://hg.mozilla.org/integration/autoland/rev/4b8a03e2bd4f)

The Bugbug bot thinks this bug should belong to the 'Core::Widget: Gtk' component, and is moving the bug to that component. Please correct in case you think the bot is wrong.

Can you please test latest mozilla binaries?
https://fedoraproject.org/wiki/How_to_debug_Firefox_problems#Testing_Mozilla_binaries
Thanks.

I was able to grab the glxtest and vaapitest binaries from the tarball and put them in /usr/lib/firefox-trunk and Nightly is now able to use hardware acceleration again. Something seems to be wrong with the build process for the official PPA that causes these binaries to be omitted.

glxtest/vaapitest needs to be packaged then.