Ah I believe I should have clarified browser support. Safari is not very well supported. Have you tried chrome?

It's not supported in Chrome either.

stefan_ 13 hours ago | parent | prev [-]

So Safari doesn't work, Firefox doesn't work. It's professional video editing, right in the ~~browser~~ Chrome window.

What is the problem with targeting the most prevalent rendering engine?

	▲	leptons 10 hours ago \| parent [-]
		You seem pretty young, honestly. You likely don't remember a time when websites displayed a message "Only works in IE", or "Only works in Netscape". It was not a good time for the web.