The only advantage of OneTab is that it converts tabs into links thus saving memory. Other than that it's slow and maddeningly clunky. First of all, the website must be open; a left click on it starts you on a 6-step process just to save it to OneTab. This would take seconds if a tab could just be dragged and dropped into a tab group but that's not how it works. And when you close the website it doesn't return to its place in the OneTab list. You have to go through the entire procedure again if you still want to save it. Secondly, organizing tabs is a many hour process with little instructional guidance especially if you already have many links in the OneTab list. There just isn't an easy way to do anything. As said, it saves memory and that's all.