Many websites require various browser plugins to be installed to function as expected. Here are some plugins that you may want to install.


Flash is used on tons of websites for embedded video, animations, games, ads and sometimes even site navigation.

The package flash-player should be installed automatically on the first run of the package manager, or you can install it manually ('Main Repository (NON-OSS)' is required).

Installing Flash in the terminal:
Java web applets are used for games, home banking in some countries, and various other things.

Install the package java-1_6_0-sun-plugin with the package manager to get Java support in Firefox ('Main Repository (NON-OSS)' is required). If the package java-1_6_0-openjdk-plugin is also installed, and Java webapplets don't work properly, uninstall it with the package manager.

Installing Java in the terminal:
To get support for various video and audio streams in Firefox, for example install the Firefox extension MediaPlayerConnectivity. It lets you select your own player of choice for playing multimedia streams.
https://addons.mozilla.org/firefox/addon/446

Microsoft have created something called Silverlight to compete with Adobe Flash in making the web require proprietary extensions.

As you'd expect Microsoft do not provide an official plugin for GNU/Linux, but so far they have contributed somewhat to the creation of an unofficial implementation - Moonlight - it's available in the form of a Firefox extension, go to:
http://www.go-mono.com/moonlight/