[qqqwww]

I think these extensions set the standard playbackRate property on the HTML5 video element: https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaEl...

Try setting the property manually using the JavaScript console and see if you get pitch correction. If not, maybe make sure you're on the latest version of Firefox?

[Baeocystin]

I'll give that a shot. Thanks.