Menu bar no longer shows forecast options. Without this the add-on is not useful. And what is with the advertising hooks? Removing the add-on until this is fixed.
Sorry, but the statusbar/addonbar is missing in new versions of Firefox. The current version of Forecastfox is the version for the new API: WebExtensions
But I'm not guilty - these are the inevitable changes in Firefox. All Xul-addons is die in Firefox 57 (November 2017) https://blog.mozilla.org/addons/2017/02/16/the-road-to-firefox-57-compatibility-milestones/
But do not worry, I'll come up with a workaround and will return Forecastfox previous form
