It was great when he arranged the tabs in one window. But now it opens several windows! It is very bad to swap between them or other windows. Too bad to use! And useless, because windows already does that.
The reason for tiling inside windows is explained in the 'NOTICES' section at the top of the Tile Tabs WE home page: https://addons.mozilla.org/en-US/firefox/addon/tile-tabs-we/
