Installing Jom webplayer is not different than installing any other Joomla!™ extension on your site. You can read the complete instructions for installing Joomla!™ extensions on the official help page.
- Download com_jomwebplayer_3.1.0.zip
- Login to your Joomla! admin.
- Select "Extensions => Extensions manager => Install".
- Browse for the downloaded Jom Webplayer package and click "Upload File & Install".
Thats' it. Now, Joomla! will upload the package on your server and install the Jom Webplayer component. This process can take more than 1 minute. Finally, you should see a result of all installed extensions (Component, Modules and Plugins) as in the below screenshot.