Can you restore back the "hide thumbnails" button? Sometimes it's useful. If it'll be two buttons as in "Customize about:newtab" addon - it'll be better.
And I want an option to change filling mode of thumbnail as "fit to weight", "fit to height", "fill", etc.
Another request is option to set background image for the about:newtab.
And the bug. If it is a spacer (blank cell) between cells, then addon can't set the thumbnail for all cells after spacer. http://storage4.static.itmages.ru/i/12/0731/h_1343742751_9101707_35ea2153ee.png Also here you can see the croped image in first thumbnail.