mozilla/bedrock — pull request #975 by kyoshino (2013-06-17 20:22:30+00:00)
Title: Bug 766606 - [mozilla.org] Firefox download button doesn't block new unsupported operating systems

* Copied the old platform detection code from download.js
* Added Windows 2000 (NT 5.0 and 5.0.1) detection
* Added Windows XP SP1 detection