Windfinder just released a new version of Windfox (the Firefox Add-on that monitors the wind at your favorite surfspot). It was not yet possible to select miles per hour (mph) as the preferred wind speed unit. This is what we added in this release. If you want to update from an earlier version open Firefox and click on > Tools > Add-ons > Find Updates to update to the latest version. If you haven't got Windfox then download it for free now!