I had installed a Safari extension that was designed to let me auto-reload a tab on a sechedule. I never really used it. I can't think of the name. One day it

I had installed a Safari extension that was designed to let me auto-reload a tab on a sechedule. I never really used it. I can't think of the name. One day it updated itself and started replacing IAB sized HTML containers with ads. I only noticed because I was doing testing with Safari and the player I expected to be loading was being replaced by an ad.