The only reason I used this so I could see several days of weather at one time on the add on bar. If that's not an option, this addon become useless. There are a ton of addons that do what you made this one now do.
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
