Very nice. I wrote/maintained some of the predecessors to this while I was at Mozilla (https://wiki.mozilla.org/JavaScript:New_to_SpiderMonkey https://wiki.mozi

Very nice. I wrote/maintained some of the predecessors to this while I was at Mozilla (https://wiki.mozilla.org/JavaScript:New_to_SpiderMonkey https://wiki.mozilla.org/JavaScript:New_to_SpiderMonkey and https://developer.mozilla.org/en-US/docs/Introduction https://developer.mozilla.org/en-US/docs/Introduction), and I love the video format. Getting started with Firefox is pretty difficult, and its good that more folks are putting effort into it. Good job!