Firefox Developer Edition is intended specifically for web development. At first sight, the browser looks quite similar to the general-purpose version of Mozilla Firefox; however, its real power can be realized when you open the Inspector panel, which allows refining code to build your layouts.
Firefox Developer Edition has various advantages. For instance, it is excellent that it lets you preview what your project would look like on different screen sizes, which is essential for developing responsive websites. Similarly, it comes with various tools intended to design with CSS Grid.
Not everything is perfect with Firefox Developer Edition. For instance, depending on the version, it may be buggy as it is not built on the latest stable version. Moreover, it automatically sends feedback data to Mozilla, which affects your privacy. Finally, in terms of development, it lacks the possibility of simulating different data transfer speeds to see how a given site would behave on different kinds of network. more