[stonesweep]

I've had WebGL disabled forever, I don't use Twitch (as the other comment describes a valid use for) and really have never missed having it enabled for many years.

It's frequently included in "secure yourself" tuning guides: Firefox -> about:config -> webgl.disabled: true

[criddell]

Ironically, disabling WebGL in a browser that typically has it on is itself a pretty valuable signal when fingerprinting.

[gherkinnn]

Well that’s inconspicuous

[stonesweep]

It's been awhile, but IIRC the recommendation to disable it is based on security, not privacy. Other comments here explain it better than I could, not a programmer by trade.