It works, but on Youtube it makes the comments section disappear. Under the video it is all blank, no comments.

Very good! Since the internal pref "media.autoplay.enabled" set to "false" does not work with Netflix as of Feb 9, 2018, THIS is the add-on to get control over autoplay.

XML files do not display properly when this extension is enabled

All this does is toggle the setting for autoplay which can be done manually. No way to disable per site. Useless.

very good

Works with some sites but not others. Problem with version 57+ Firefox?

Works very well!

Not perfect (had some glitches) but the only extension that I've found that actually offers a whitelist approach. I verified I can block on sites like CNN and can allow on sites like youtube & netflix. This should be built into browsers period and on by default. I can think of no good reason of ever wanting to allow this by default. So, good work.

Most of the time doesn't work.

Does not work in Netflix.

Woeks great. Thanks!

Haven't had a single problem with this add-on, honestly works even better than I expected. Very well done.

It's very simple. It does exactly what it says that it does. It works perfectly.

Sometimes works, sometime not.

Mimics the diasabled media.autoplay.enabled setting in about:config but provides a needed whitelist.

It's been working well. Thank you.

I can't disable totally for a single url

OK.

Thank god for this. I was getting really annoyed with my capped bandwidth being sucked slowly through my modem because of video I didn't request. Works great for HTML5. It just puts a play icon on top of the video without starting it. You don't lose anything. Great work.