Yazsoft today announced the availability of Speed Download 3.0.10, the latest version of the popular download manager for Mac OS X. Changes in version 3.0.10 include: optimized Speed Download 3 plugin for faster performance under Mac OS X 10.4.1, support for more file extensions, enhanced compatibility with Safari and Mozilla-based Web browsers, and several other bug fixes and tweaks. Speed Download 3.0.10 is priced at US$20 and is a free download for all registered registered owners of version 2 or 3.