Building a Firefox New Tab Extension: From Idea to AMO Publishing

Building a Firefox New Tab Extension: From Idea to AMO Publishing Every time you open a new tab in Firefox, there's a missed opportunity. The default page is... fine. But what if it showed you the weather, your world clocks, and a search bar — all without any data leaving your device? That's what I built with Weather & Clock Dashboard . Here's how the whole thing came together, including the surprising parts of publishing to AMO (addons.mozilla.org). The manifest.json entry point A new tab o