Read more at source:Mozilla has pushed out Firefox 16, updating the program with a new command line feature designed to tempt developers back to the browser.
The updated browser, released for download on Tuesday, is light on new features in comparison with previous versions, but does introduce a new developer toolbar and the command line.
The developer toolbar, when selected, appears at the bottom of the screen and allows quick access to features like the page inspector and debugger.
Firefox 16 brings developer command line for faster debugging | ZDNet