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Is there a URL parameter for youtube.com that makes it possible to open a video and not have it start playing automatically?

There is a parameter for the embedded player (autoplay=0), but this does not seem to work with the full site.

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up vote 8 down vote accepted

The TubeStop extension for Firefox prevents autoplaying YouTube movies whenever they appear (within Firefox).

The extension developer also provides a version for Chrome, which I haven't checked.

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chrome extension does not work for me – mafu Sep 11 '10 at 18:50
Hm, yeah. But nothing that would work everywhere. Too bad. Anyway, that's an answer, too. – Tomalak Sep 30 '10 at 21:00
For Chrome, I used to use the Stop Autoplay for Youtube extension. Haven't used it in a little while, but it always worked fine for me. – GnomeSlice Oct 19 '11 at 13:58
TubeStop was discontinued on December 25, 2012 and is no longer supported, for both Firefox and Chrome. – James Jun 13 '15 at 20:56

try smartvideo for youtube. once installed, in the configuration settings you'd have to tick the box 'start playing when buffered' first before you can check "don't play; only notify when video has buffered."

works for embedded videos as well.

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If you convert the URL from the format




the video will not automatically start and will be displayed in a larger format.

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This seems to be new. Nice find, thanks! – Tomalak Jan 31 at 10:36

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