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Level 1

62 points

Stop auto play HTML5 in Safari?

With the upgrade from El Capitan to Sierra, ClicktoPlugin is very much broken. So now videos on sites such as YouTube, CNN, and others are all auto-playing again.

I've read that Sierra has a feature to stop this from happening - it involves going to Safari Preferences:

Go to the Security tab, then Internet Plug-ins. Allow Plug-ins should be checked, then click the Plug-in Settings button.

Then choose QuickTime, set "When visiting other websites" to Ask. HTML5 should then stop auto playing video.

The problem is this doesn't work, as there isn't any QuickTime plugin listed.

So does anyone know how to stop HTML5 from playing in Safari 10, under Sierra?

MacBook Pro, macOS Sierra (10.12)

Posted on Sep 24, 2016 8:30 AM

28 replies

Oct 14, 2016 1:16 PM in response to jeffreyv

THANK YOU, JEFFREY!!!!

robertcoogan Author

Level 1

62 points

Oct 15, 2016 3:42 AM in response to jeffreyv

This seems to have done the trick, with some bizarre results (not that I'm complaining). CNN videos ask me to download Flash (every time). But when I click the link to download Flash, then it plays the video. YouTube also will begin to load the video, change the play/pause icon so that it looks like it is autoplaying, but never starts. When I click the play button, the video goes to full screen (groan). But it is better than autoplay. Vimeo has been stopped dead in its tracks, nothing loads unless I want it to.

Many thanks -

swhitlow

Level 1

13 points

Nov 18, 2016 10:35 AM in response to robertcoogan

Actually, if you enable the "Video Needs User Action" menu item in the Debug->Media Flags area, it seems to be a lot better. Make sure every other item in the menu is unchecked as just check the Video needs user action flag. This did the trick for me.