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Fixing a broken Quicktime plugin installation
At some point, I stopped being able to see Quicktime content on webpages viewed with Safari.
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Apple’s Quicktime Troubleshooting page solves this by simply having us download and reinstall Quicktime. Except that yielded no improvement of my particular situation. When I looked into the HD/Library/Internet Plug-In directory I saw the new QuickTime PLugin.plugin that I had just installed as well as QuickTime Plugin.weblugin that was part of the old Webkit and had a date of 2004.
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So my next step was to simply quit Safari, remove the older extraneous QuickTime Plugin.webplugin and restart Safari. Upon revisiting the QuickTime Troubleshooting page I was rewarded with this confirmation:
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All’s well that ends well. Thanks to this MacWorld thread: