If i could rate it zero stars I would. Pointless to put up an extension that does absolutely not a damn thing. Nice icons though...oh wait. those were already made by google. bug report page doesn't work either. Convenient maybe?
After some initial problems (and a quick fix) the updated version does show up again in menu bar AND does –partially– work again (Win 10 / Quantum) > customization (drag and drop / add custom buttons) still does not work. Slowly getting there, thanks!