Mozilla has launched a bunch of new built-in developer tools for Firefox, and the new tools are designed to let developers change the look and feel of websites in real time. These tools are aimed at ...

Mozilla announced a new Firefox OS reference phone, a new reference tablet, and new developer tools at Mobile World Congress last week. Additional commercial devices running Firefox OS were also ...

In addition to the stable release of Firefox 42, Mozilla also launched Firefox 44 Developer Edition, adding visual editing and memory management tools. Today’s release coincides with the one-year ...

Mozilla is adding a global "AI kill switch" to Firefox, giving users a single option to permanently disable all AI tools in the browser. Developer Jake Archibald confirmed on Mastodon that the new ...

With its open source debugger.html tool, launched this week, Mozilla is providing a JavaScript debugger that can debug multiple targets and work in a standalone mode. The effort is part of a plan to ...

The Firebug web development tool, an open source add-on to the Firefox browser, is being discontinued after 12 years, replaced by Firefox Developer Tools. Firebug will be dropped with next month’s ...