I would like to be able to give each tab i use the ability to have internet or not. So i can use one tab, and give it internet but other tabs that pop up, won't have internet as it would be off by default. Just have a check mark box on each tab. Checked would allow internet to function on that tab only. Any other tabs that pop up, wouldn't be able to display anything as no internet is connected to that tab. Good way to not let pop ups display or download anything.
You could also give the option to have all tabs have internet by default, the way it is now, or no internet by default which you can grant per tab as needed.