On 12/8/2013 4:31 AM, Tetsuharu OHZEKI wrote:

I welcome your feedback to polish Firefox for mobile and web.
Note that autoplay is not the most interesting case, because most of the top video sites don't actually use it; instead they use a scripted .play() call on load.

https://bugzilla.mozilla.org/show_bug.cgi?id=944876 may be relevant: in that bug I'm willing to mentor somebody to add a hidden pref for additional control over autoplay behavior.

For desktop Firefox, I don't think we'd ever want to disable autoplay *by default* in the foreground tab: many people expect their youtube video to just start if they click the link. I suspect that, as discussed earlier on this thread, it might make a lot of sense to delay starting media in a *background* tab (e.g. opened via middle-click). Then we'd autoplay when the video comes into the foreground. We could even implement a setting where all media pause in a background tab.

Before we decide on new defaults, I think we should do some experiments with what we can actually accomplish in bug 944876, hopefully get some prototype extensions out for people to experiment with, and then come back and consider what preferences and defaults it actually makes sense to expose.

--BDS

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