The QuickTime application from Apple, Inc. includes a browser plugin that enables you to play movies and other online media in your Firefox browser. QuickTime is included on Mac systems and is available for Windows. This article explains how to check that QuickTime is installed and working and includes some troubleshooting suggestions if you are having problems with QuickTime.
To see if QuickTime is installed and working,To see if the QuickTime browser plugin is working, visit this page:
If the QuickTime video plays, the QuickTime plugin is installed and enabled.
To install QuickTime or to update to the latest version:
Starting with QuickTime version 7.7.9, the browser plugin is no longer installed by default and will be removed if you have a previous version of QuickTime on your computer.
If you are installing QuickTime 7.7.9 or above you should select the "Custom" install option instead of a "Typical" install, so that you can include the optional QuickTime Web Plug-in. If you have already installed or updated QuickTime, you can add the browser plugin using these steps:
The QuickTime installation will complete and the browser plugin will be installed. If you see an installation error, close Firefox (if open) and try again. When you next open Firefox you should see the QuickTime plugin listed in the Add-ons Manager.
QuickTime is pre-installed and can be updated using the Mac OS X Software Update feature.
Click the menu button and choose Add-ons. The Add-ons Manager tab will open.
When you click on a link to download a media file and the QuickTime plugin can handle that type of file, it will open automatically in Firefox with the QuickTime plugin. You can change this behavior by selecting a different download action in your Firefox Application settings. For more information, see Change what Firefox does when you click on or download a file.
You can only change the file types that are associated with QuickTime Player. The Internet media types that are handled by the browser plugin are enabled by default for all supported media types and cannot be reconfigured.
The QuickTime plugin enables certain media types by default. If you are having problems with embedded content in a webpage, you can reconfigure the QuickTime browser plugin:
For information about uninstalling QuickTime, see these Apple Support articles:
Based on information from QuickTime (mozillaZine KB)