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Adobe Flash Player is automatically detected by SeaMonkey, Mozilla Firefox, Opera, Safari and Google Chrome when installed.

If Flash Player does not work, see the Top Issues section of the Flash Player FAQ.

Adobe Reader is automatically detected by SeaMonkey, Mozilla Firefox, Opera, Safari and Google Chrome when installed.

Adobe Shockwave Player is automatically detected by SeaMonkey, Mozilla Firefox, Opera, Safari and Google Chrome when installed.

The Java Plugin is part of the Java Runtime Environment. SeaMonkey, Mozilla Firefox, Opera, Safari and Google Chrome will automatically detect and use the Java plugin if it is installed.

Users of Firefox 3.0 and later are advised to update to Java Runtime Environment 6.0 Update 10 or later in order to use the new Java plugin. Pre-release versions of SeaMonkey 2.0 and Firefox 3.5 require the new Java plugin, and will not work with older versions.

QuickTime is automatically detected by SeaMonkey, Mozilla Firefox, Opera, Safari and Google Chrome when installed.

RealPlayer 11 is automatically detected by SeaMonkey, Mozilla Firefox, Opera, Safari and Google Chrome when installed.

SeaMonkey, Mozilla Firefox, Opera and Safari will automatically detect and use the Windows Media Player 9.0 browser plugin if installed.

The installer for the Windows Media Player 11 browser plugin has a major design flaw!

Installers for Mozilla plugins should place the plugin files in the folder of the application they belong to, and information in the Windows registry so that all Gecko based browsers can locate the plugin. The Windows Media Player 11 plugin installer does not do this.

If Mozilla Firefox is installed, the plugin will be installed to your Mozilla Firefox plugins folder. If Mozilla Firefox is not installed, it will be placed in a \PFiles\Plugins folder on your Windows drive (usually C:). Safari will detect the plugin in either location.

If you wish to use the Windows Media Player 11 plugin with SeaMonkey or Opera, copy np-mswmp.dll to your browser plugins folder.

Google Chrome does not use the Windows Media Player plugin, it uses the ActiveX control instead.