Legacy Windows Support Ending

The upcoming Firefox 13 release slated for Tuesday, June 5th will no longer support Windows 2000, or Windows XP SP1. The end of support is due to Mozilla shifting to MSVC++ 2010 to compile the Firefox builds. Support for Windows 2000 and XP SP1 will continue with Firefox 10.0.x ESR builds until Firefox 17 ESR is released in November 2012.