Installing Extensions All extensions will come in the form of compressed zip files and are installed via the same process. To install, you simply use the Extension Manager. Go to Extensions>Install/Uninstall. This will show the Extension Manager, as shown in Figure :

On the first tab labeled Install, there is a tool to upload the installation package (the zip file of the extension). When you browse to the file and upload it, Joomla automatically detects what type of extension it is and installs it. You will then be shown a screen that tells you the installation has been successful. Often, depending on the third-party extension being installed, you will also be shown some more details about the extension, such as set-up instructions or where to seek support.

The Extension Manager is also used to uninstall components. In Figure at the top you see tabs for Components, Modules, Plugins, Languages and Templates. If you click Components  you see a list of components that can be uninstalled. Notice in that Figure that many of the components are grayed out. These are core components of Joomla that cannot be uninstalled.