I take it you still haven't worked out how to make cashback stay on all the time? Sometimes I forget to turn it on. Sometimes the flashing icon is annoying if I'm not planning to buy and don't need it. Sometimes I try to type something into the search box in Ebay, only to find the cashback alert has stolen focus and my typing was wasted.
Please make this work properly without user intervention every single time I use a website!!!!
An idea - perhaps you can link cashback to the Opera account? I'm always logged into that, and it's showing at the right end of the URL field.