Firefox fails to start

[Lazaro Morales]

After installing Firefox from the ppa I tried to run it and nothing happened. I tried to run it from the terminal and that’s when I saw that it hangs after showing this:

ATTENTION: default value for option mesa_glthread overriden by environment.
MESA: error: Failed to query drm service.
libGL error: glx: failed to create dri3 screen
libGL error: failed to load driver iris

Any ideas?

[Lazaro Morales (lazarom)]

It worked when I ran it like this:

$ LIBGL_ALWAYS_INDIRECT=1 firefox

and it worked fine afterwards. Not sure what was the cause but I think we can close this ticket

[Daniel Tang (daniel-z-tg)]

Try `sudo aa-teardown` to disable Apparmor, then relaunch Firefox.

LIBGL_ALWAYS_INDIRECT=1 causes WebGL aquarium to run at 12 FPS and high CPU for me instead of 60 FPS.

Also see my https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2018439

[Lazaro Morales (lazarom)]

Thanks Daniel, I didn't know it would have that impact. Thanks for letting me know.

[Amin Bandali (bandali)]

Hello, and sorry for the slow reply here.

Which release of Ubuntu was this on? The mozillateam ppa ships updated AppArmor rules with its firefox packages for Ubuntu 23.10 and later, and should thus be able to access mesa libraries. As such, I'll go ahead and close this bug, but if you can still reproduce it with the packages for the newer Ubuntu releases please feel free to comment and reopen it. Thanks.

[Lazaro Morales (lazarom)]

Thanks Amin, I will give it a try on the next Ubuntu release to see how it goes. Makes sense closing the ticket then.