I mean this page for the avast! Security Plugin plugin 9.0.2016.82. It constantly reopens even after closure of the webpage and browser. Meaning when you close Firefox, and open it later (after closing the webpage tab) it will reopen along with the users default homepage tab/webpage. It behaves perfectly in Chrome, but on multiple computers (8 separate systems now) I have updated or seen updated to yesterday’s update experience this issue on Firefox only. Disabling the plugin from within Firefox is the only way to prevent the aos.avast.com/upgrade/2006 from loading.