Hitting the web this afternoon is word of Mozilla Firefox v1.5.0.1. Although this is the first minor update in the v1.5 series, which initially premiered late last year, the updates remain slim. According to the official release notes, the main changes include improved stability, improved support for Mac OS X, international domain name support for Iceland (.is) is now enabled, fixes for several memory leaks, and several security enhancements. The update is available of course for Microsoft Windows, Linux, and Macintosh. Downloads can be obtained from GetFirefox.