Comment 12 for bug 1983010

>Also encountered on Firefox 102.3.0 while listening to music using Spotify's web portal

Hi James, as explained above the messages are just warnings, so something else must be going wrong. We'll need more details about your configuration, e.g. which distribution are you running? What graphics hardware and drivers do you have?

Could you try to run Firefox with ```MOZ_DISABLE_GMP_SANDBOX=1``` set in the environment and see if the issue reproduces?