The Phoenix Firestorm Project Inc. is a non-profit, incorporated organization whose mandate is to improve the user experience in Second Life and other virtual worlds by providing an advanced open source viewer with greater features, options and interface flexibility than the standard offering by Linden Lab. The project has approximately 80 volunteers working for it and are managed through departments divided up as Development, Support and Quality Assurance. We provide live support 24/7 in nine different languages inside of Second Life through our support groups and on the web via our issue tracker.
The Phoenix Firestorm Project is currently active in developing the Firestorm Viewer, the successor to the now discontinued Phoenix Viewer. Firestorm Viewer is based on the Linden Lab V3 LGPL code base and has an enormous number of features, options and interface customization choices, including a look similar to its predecessor Phoenix Viewer. Firestorm is developed for Windows, Linux and Mac OS X operating systems.
The source code to our Viewers can be found here, but we do not provide support for compiling the viewer.