You know that Chrome tried to remove auto-start videos and advertisers just ended up writing their own battery sucking slow canvas based software decoders?
That Firefox is doing this is very much like yesterday's new Facebook URL
By default firefox only prevents content with audio from autoplaying, which I can't think of any way to circumvent and it's probably good enough for most people.
That Firefox is doing this is very much like yesterday's new Facebook URL
https://news.ycombinator.com/item?id=32117489
where people complained Firefox screwed up by escalating.