How to Use the OpenWeatherMap API in a Firefox Extension

How to Use the OpenWeatherMap API in a Firefox Extension Weather data is one of the most commonly requested features in new tab extensions. The Weather & Clock Dashboard uses OpenWeatherMap's free tier. Here's a complete guide. Getting an API Key Sign up at openweathermap.org — free tier allows 60 calls/minute, 1M calls/month Go to API keys in your account dashboard Copy the default API key (or create a new one) Keys become active within 10 minutes Free tier limits: 60 requests/minute, 1,000