How to Disable Quicktime on Firefox on a Mac
Apple's QuickTime Player for Mac OS X users includes a Mozilla Firefox browser plug-in enabling users to play audio, movies and other media on the Internet. The QuickTime plug-in may have been automatically installed when you downloaded the Firefox browser, or you may have set QuickTime as your default online video player using Firefox's add-on or plug-in functions. This can be disabled using Firefox's "Add-On" manager. You can also disassociate QuickTime from opening Firefox downloads by resetting your Firefox download preferences, based on specific file types.
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Instructions
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Disabling QuickTime Plug-in on Firefox
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1
Launch Firefox. Click the "Tools" tab at the top of your screen, and select "Add-Ons."
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2
Select the "Plugins" panel on the left side of your screen.
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3
Locate the "QuickTime Plug-In" in your list of Firefox plug-ins. Click the "Disable" button.
Managing Downloads in Firefox
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4
Launch Firefox. Click the "Firefox" tab at the top of the screen, and select "Preferences."
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5
Click the "Applications" tab, revealing a list of file types and the programs set to open them after download.
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Scroll through the "Content Type" and "Action" columns, locating any "QuickTime" setting in the "Action" column. Disassociate QuickTime with specific file types (e.g., AC3 Audio or MP4 Video) by clicking the QuickTime icon and choosing a different program from the list of available options.
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7
Click "OK" to close the "Preferences" window and return to Firefox.
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