Anyone know what's going on with the icons in the top left of the first screenshot? Or on this mockup posted by abrowne below: https://people-mozilla.org/~shor

Anyone know what's going on with the icons in the top left of the first screenshot? Or on this mockup posted by abrowne below: https://people-mozilla.org/~shorlander/projects/photon/Mockups/linux.html https://people-mozilla.org/~shorlander/projects/photon/Mocku... Would be quite useful to have an area like that for web apps. The browser could apply a heuristic similar to that used by Chrome for the 'pin to home screen' (a website that fulfills the PWA guidelines, and is used repeatedly), which would then be pinned to the new tab page, and when they are open go to that area at the top left. Or something. But, anyone know what it's actually used for?