Hi Photon is a new design that creates a fluid, native experience on every operating system. There is more room above the tabs, the search bar and address bar now have the option to be combined or separated, and the menus in Firefox are organized by common tasks. In order to customize all your favourite functions, you can use the ‘Customize’ setting in this new menu. See the [[Customize Firefox controls, buttons and toolbars]] article for more info.