Even though this is one of the most useful add-ons (when you use it intentionally), it has caused me problems. If you click the icon once, even by mistake, it sends all your tabs into OneTab automatically. Then, if you try to reopen them, it opens and *loads* every single one of them in succession, causing a tremendous memory leech. AND - it loads them in reverse order! Now my last opened tabs are way left, at the other end of the row and I have to scroll back to reach them! Absolutely inconvenient and frustrating.