missing plug-in when trying to view quicktime videos in Safari

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jsharp2000 Author

Level 1

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missing plug-in when trying to view quicktime videos in Safari

When I try to view quicktime videos from Safari (ex. any clip on apple.com) it just shows "missing plug-in". When I log into a different user account it works fine, so I know it's something configured on my account. I've also restored files in Library>Internet plug-ins, as well as copied from different user account and replaced all files in Library>Internet plug-ins, still same issue. Is there some other location that plug-ins for Safari would be located?

I'm on Lion, but don't think that is the catalyst for the issue. Videos had issues prior to upgrade, although they played, the control bar never went away and some other strange behavior.

MacBook Pro, Mac OS X (10.7)

Posted on Jul 21, 2011 6:46 PM

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Answer 1

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Carolyn Samit

Level 10

165,615 points

Jul 21, 2011 7:46 PM in response to jsharp2000

When I log into a different user account it works fine, so I know it's something configured on my account

In your user account check Safari / Preferences - Extensions. If you have any installed, turn that off, quit then relaunch Safari, try a video.

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Answer 2

jsharp2000 Author

Level 1

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Jul 21, 2011 9:04 PM in response to jsharp2000

Wow, that was too easy. It was a DIVx extenstion, turned it off, and boom.....fixed. Thank you for the time to answer my question, wish I would have found you earlier!

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Answer 3

Jul 23, 2011 4:43 PM in response to Carolyn Samit

didn't worked for me 😟 still plugin missing.. I even delete all of the extensions in Safari / Preferences — still not working. Any more ideas, pls?

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Answer 4

Jul 23, 2011 4:53 PM in response to jsharp2000

You're welcome 🙂

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Answer 5

Jul 23, 2011 4:54 PM in response to Evgeny Leshchenko

Could be a third party plugin causing an incompatibility issue...

Safari: Unsupported third-party add-ons may cause Safari to unexpectedly quit or have performance issues

Click your Apple menu / Software Updates.. just in case!

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Answer 6

Jul 27, 2011 11:15 AM in response to jsharp2000

I was able to fix this my removing, restarting and re-installing the Perian plug-in to all users in my machine.

I also uninstalled all other plug-ins, except for the QuickTime player plug-in, just to make sure. But it seems that the problem resided in Perian alone.

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Answer 7

Aug 17, 2011 4:07 AM in response to jsharp2000

Well, LION 10.7.1 is here....informing us the "Missing plug-in" issue is fixed....

And its NOT... no change at all.

Not sure what kind of UAT testing they conduct....but its obviously not that extensive...

And no options to re-install LION Safari yourself....

So we all have to just hope someone at Apple....does something...as this is embarrassing as we cant even watch there own promo movies on there own web site...on their own software.. FAIL!

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Answer 8

Aug 24, 2011 7:28 PM in response to David Scragg

i removed the divx extention and the apple website vids are playing fine now.

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Answer 9

Sep 20, 2011 12:26 PM in response to jsharp2000

found the solution. just go to Username/Library/Preferences and delete the file com.apple.quicktime.plugin.preferences.plist

Did that twice, fixed the bug twice.

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Answer 10

oyasser

Level 1

0 points

Jul 30, 2012 5:36 PM in response to Carolyn Samit

Hi Carolyn,

I have seen that you have a good knowledge about safari plugins. I use mac mini with 10.5.8, and i try to see online tv on a website called glarab.com. I install their own plugin, but after installing i go back to watch but still aking me to install the plugin again and again, as if im not installing anything. Can you help me with that pls?

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