Mozilla today announced the Firefox OS App Manager, a new developer tool that will ship with Firefox 26. It is designed to help developers build and debug Firefox OS apps, either in the Simulator or ...

Firefox has just added built-in developer tools that rival Chrome’s own offerings. The new tools provide a clean and easy way to inspect elements in a single window. More specifically, it’s now much ...

John Barton has led work on Firebug, a Firefox extension widely used in developing Web sites. Now he's moved to Chrome, reflecting the new balance of browser power. Stephen Shankland worked at CNET ...

Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn More Mozilla today updated Firefox 38 to version 38.0.5. A small bump like ...