Testing plugins

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You can see what plugins are installed and enabled by visiting these pages (see also about:plugins):

You can test your plugins to see if they are working by visiting the pages listed below.

Embedded media

The embedded media on these pages require a plugin:

Other media tests

Note: You need a plugin for embedded media on webpages but direct links to media files can be opened in a "helper" application, if no plugin is set to handle the MIME type. Also note that Firefox and SeaMonkey are able to handle certain media types without a plugin or helper application, including ogg, webm (see below) and, starting in Firefox 21 on Windows 7, downloaded mp3 and certain mp4 files via Windows Media Foundation (see bug 799315). [3] [4]

Open media

The following pages use HTML5 to embed audio and video in supported browsers such as Firefox and SeaMonkey 2, without needing a plugin.

For more information about HTML5 audio and video and open media, see Viewing HTML5 audio and video in Firefox at support.mozilla.org

See also