What Is a Plugin?


Quick Answer

A plugin is a piece of software that is added to another program to perform features not available on the original program. A Web browser typically requires plugins to play various media file formats, such as a video or audio player.

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Full Answer

Websites often offer a direct download of plugins required to play content on the page. The company that designs the file format used on the Web page often creates the plugin needed to view the content, such as Adobe creating the Flash Player plugin. Once a plugin is installed on a Web browser, it typically opens when the browser is opened, allowing users to navigate through websites without manually opening each plugin.

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