Waterfox is high performance 64-Bit version of Mozilla Firefox. The Firefox source code is taken and compiled to run specifically for 64-Bit Windows computers. To make Waterfox stand out a bit more, it’s compiled with optimizations so that it will run more efficiently and faster than just compiling Firefox as a 64-Bit program.New in this version: Support for SPDY networking protocol v3 WebGL enhancements, including compressed textures for better performance Optimized memory usage for add-ons JavaScript debugger integrated into developer tools New layout view added to Inspector High precision event timer implemented The CSS word-break property has been implemented. New responsive design tool allows web developers to switch between desktop and mobile views of sites Native support for the Opus audio codec added The and elements now support the played attribute The element now supports the media attributeFocus rings keep growing when repeatedly tabbing through elements (720987) Fixed any remaining installer issues Added optional portable version (useful for users without administrator permissions) Optional AVG Security Search Intense Profile-Guided OptimisationMay require Microsoft Visual C++ 2010 Redistributable Package installed.Note Option to install AVG Toolbar or not.