Tree style tabs is what brought me over. I have dozens of tabs I want to keep an eye on, without necessarily having them actually open and loaded. Kinda like bo

Tree style tabs is what brought me over. I have dozens of tabs I want to keep an eye on, without necessarily having them actually open and loaded. Kinda like bookmarks but quickly available. There's no way to arrange that many tabs across the top, so a bit of CSS magic removes the top tabs. With modern screens being so wide it makes sense to just have them vertically, in a tree.