Shows tabs from all open windows,with paths to existing bookmarks, or lets you bookmark
So what this does is pretty simple. Nothing NASAesque here .
It lists all open tabs across all open windows vertically - just those pretty favicons really and lets you move seamlessly across them. Also, shows paths to existing bookmarks. Lets you bookmark others under 'Other bookmarks' with a check - all in one go.
Will warn you 'can read your browsing history'. Trust me, I am not NSA.