Modified Waterfox 6.5.11 (128) and Waterfox 6.6.7 (140) for Windows 8+
6.5.11 (128): Windows 8.1: Stable. Windows 8: Quite stable.
6.6.7 (140): Windows 8.1: Quite stable. Windows 8: Further observations are needed, not very stable at the moment.
Known issues: 6.6.7 (140) - Frequent crashing of bookmarks in the browser (most often on 8.0).
msvcp140.dll and vsuntime140.dll borrowed from the "Firefox for Windows 7" project by https://github.com/e3kskoy7wqk