There are browser cookie manager extensions that can be configured for site specific cookie control. FYI:Mypoints has a vey devious personal information practice Y'all should be aware of. Mypoints runs numerous panels and if you join them, mypoints will compare your supplied information across all of these panels, even discontinued panels. If there are discrepancies, then Mypoints will inhibit you ability to do surveys. I discovered this in a support ticket, trying to resolve no surveys. Apparently I had registered for other panels and discontinued some of these panels. The information was nolonger updated and enough became stale that mypoints used it against me.