Firefox Developer Edition is a version of Mozilla product created specifically for software developers. It has several new features and unique functionality. This version of the browser can actually operate independently of standard Firefox and family browsers like Safari. It borrows the default colors and interface elements from the developer tool set which makes the interface itself easy to use and navigate if you have any experience in development of products in this line.
Some of the new tools, like the Valence add-on, give you access to Firefox developer tools for other browsers. Other notable features include things like Responsive Design View, which lets users change screen sizes in real-time without adjusting size of their browser window. Then, there's the style editor, a tool that lets you edit CSS page styles, to create your own variations and apply existing CSS style sheets to other pages.
Firefox Developer Edition is an all-in-one toolbox for people into browser development. It has all the basic tools and some of the more advanced features one would expect from a software bundle like this.
v44.0 [Nov 3, 2015]
- Improved warning pages for certificate errors and untrusted connections.
- Warning page when RC4 is the only supported cipher.
- Right click on a logged object in the console to store it as a global variable on the page.
- Application/JSON documents can be easily inspected using interactive viewer.
- New memory tool for inspecting the memory heap.
- Lock icon strikethrough for pages containing insecure password fields.
- Added full support for network interception using Service Workers.
- Visual tools for Layout and Styles:
- Display rulers along the viewport to verify size and position and use the measurement tool to easily detect. - spacing and alignment problems.
- Use CSS filters to preview and create real-time effects like drop-shadows, sepia, etc.