[serf]

a lot of that may be TTS accessibility features.

I know Ubuntu, among others, used to ship Firefox without modules it defaulted into, so it would complain harmlessly and bring up an annoying pop-up-blocked style modal when the TTS module/engine was missing.

(they may still do this, but i'm not up to date.)

[LeratoAustini]

Oh so maybe they are just initialising the TTS by default, ready for those who need it for accessibility? That would make sense.

I'm on a Debian, so that ties in with what you mentioned.

It's easy to get rid of the error, I was more just curious. Thought maybe mainstream websites had started blasting speech at users as soon as they arrived.