So far I'm guessing that webm volume is controlled by the server they're hosted on, because on 4chan the volume is muted by default, and here the volume starts at about 0.000001%. But, is it possible to learn this power?

Maybe they just changed something because of your post, but for me WEBM volume defaults to max in both FF and Chrome.

it also depends on what browser you use too I think. I would imagine there are some browsers with lots of advanced options that let you control that sort of thing.

this script appears directly after the video element on the page:


so you could write a userscript which simply does