Perfect Bewertet mit 5 von 5 Sternen
This is excellent. Exactly what I was looking for. It's like the newtab page, but more customizable and doesn't add thumbnails automatically from previous sites you visited (I really hate how browsers do that).
The grouping is an excellent addition. One suggestion: An option to open all links in a group in their own tabs. Kind of like Firefox's bookmarks folders (right click, Open All in Tabs).