I Built a Free Firefox New Tab Extension with Live Weather and World Clocks

I spent a few weekends building a Firefox browser extension because I was tired of my new tab page doing absolutely nothing useful. The result: Weather & Clock Dashboard — a replacement new tab that shows live weather, a 3-day forecast, and clocks for any cities you care about. What it does Live weather : Current conditions with temperature, humidity, and feels-like for your location 3-day forecast : See what's coming so you can actually plan your day World clocks : Multiple cities displayed