I, too, would like to drop the messages. Or, at least make them smaller. Or turn on and off as necessary.
I have Avast Pro 2015. Like most users I am being hit often. The box in the lower right corner advises: "Avast Web Shield has blocked a harmful webpage or file." Then it gives an object, infection, and process. Then a blue box with "More Details." I have tried to turn off pop-ups and other items to no avail. Thank heavens I managed to turn off the sound. Right now the box shows 51 hits, the maximum I've seen. If I press the "X" in the corner of the box it goes away only to start again. I don't need these notifications, I trust Avast is taking care of the bad guys. (I just hit he "X" and now the next pop-up is counting upward, currently stalled at 10.
How do I get rid of this pop-up??? Thanks.