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A comment on The New Firefox and Ridiculous Numbers of Tabs. Parent comment

Re:The New Firefox and Ridiculous Numbers of Tabs by wging on Friday July 21, 2017 @06:29PM (#14824201)
YouTube is a bit smarter these days: they defer playback until the tab first gets focus. So you have to pause at most as many videos as there are separate windows, not tabs.

I believe Chrome is not nearly as smart as it could be about deferring loading of tabs, though.

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Re:The New Firefox and Ridiculous Numbers of Tabs by tokenizerrr on Friday July 21, 2017 @06:53PM (#14824327)
It's not youtube doing that, but chrome. The html5 video element doesn't start playback until the tab first gets focus.
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Re:The New Firefox and Ridiculous Numbers of Tabs by FreeFull on Friday July 21, 2017 @07:10PM (#14824429)
Firefox has the same thing, but you have to enable it in about:config
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Re:The New Firefox and Ridiculous Numbers of Tabs by kibwen on Friday July 21, 2017 @07:13PM (#14824439)
Do you have to enable it? I use Firefox Nightly, and have been observing this behavior for a long, long time. It's one of those things that's so minor and yet so important that I wonder how I went without it for so long.
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Re:The New Firefox and Ridiculous Numbers of Tabs by fiveseven_ on Friday July 21, 2017 @07:26PM (#14824509)
I believe it is enabled by default now, and the value in about:config is `media.block-autoplay-until-in-foreground`
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Re:The New Firefox and Ridiculous Numbers of Tabs by cpeterso on Friday July 21, 2017 @08:28PM (#14824740)
Thanks for the pref name. The feature is currently enabled by default only in the Firefox Nightly channel but you can use the pref to enable it in the Beta or Release channels.

https://bugzilla.mozilla.org/show_bug.cgi?id=1352014

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Re:The New Firefox and Ridiculous Numbers of Tabs by bigbugbag on Saturday July 22, 2017 @06:20AM (#14826376)
It's disabled by default on regular firefox.

I prefer to disable media.autoplay.enabled which is enabled by default.

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