Mozilla is still keeping up with their promise for rapid releases of their Firefox web browser, and it actually just seems like yesterday when the company released Firefox 15 to the public ...

As promised, Mozilla today launched Firefox Developer Edition, which it is calling “the first browser created specifically for developers.” The company wants to solve a very big problem ...

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 ...

Firefox 15 will offer web developers a couple of cool new tools when it arrives later this year, including a very handy new "Responsive Mode" for testing your responsive websites.

For developers, however, this update is a bit more interesting. In total, this new version of Firefox includes 85 improvements to the browser's built-in developer tools.

We show to you how you can identify what font a web page on Chrome, Edge and Firefox is using through Inspect Element in Developer Tools.

If you're a developer, Firefox extensions can help you get more out of your work. Here's a list of 15 add-ons that are all worth trying out.

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 ...

Mozilla is planning to add several new web-development tools to Firefox in 2012. Eventually these built-in tools may even be enough to replace the popular Firebug add-on for most developers.

The latest version of Firefox, released a mere six weeks after version 6, may not appear to have changed much, but there are a few useful, subtle changes to be found.