Release notes can be found on the Moonlight project wiki, here.

Check the list of supported operating systems and architectures

1. Select the architecture:
32 bit 64 bit
2. Download the plugin
Your browser type could not be determined. The following plugin types are available, please select the best match for your browser.
For Firefox: Linux/i586 3.6 MB Last Updated: Apr 06, 2011	For Chrome: Linux/i586 3.6 MB Last Updated: Apr 06, 2011
For Firefox: Linux/x86_64 3.7 MB Last Updated: Apr 06, 2011	For Chrome: Linux/x86_64 3.7 MB Last Updated: Apr 06, 2011

Installation

When installing the Novell Moonlight plugin, Firefox may prevent the installation and present you with an information bar:

Information Bar

To continue the installation click Edit Options... on the information bar and add this site to Allowed Sites, then click on the appropriate installer again.

Allowed Sites

Stable Version 2.4.1 Download

1. Select the architecture:

2. Download the plugin

Installation