Contributing to Mozilla Firefox DevToolsContributing to Mozilla Firefox DevTools Contributing to Mozilla Firefox DevTools In 2007, Firebug 1.0 was released as a Mozilla Firefox add-on. This was the first set of browser development tools to feature a DOM inspector, a console and a JavaScript debugger in one place, which revolutionised front-end development tooling and shaped the way other browsers approached it too. A decade later, Firef
