Blocking pop-ups in Safari
i'm using an iphone 8 and get constant pop ups from fake amazon contests that are driving me crazy. it's gotten to the point that i can't use safari at all anymore, which isn't very convenient since apple defaults to safari. i installed the firefox app on my phone which works fine, but i have to manually open it every time i want to use it. i've tried resetting my device, updating software, clearing the history/cache. i also blocked pop-ups, turned on fraudulent website warning, etc., etc, etc., and NOTHING works. i see other people have been having this problem for quite some time, too. does anything work? thank you
iPhone 8, iOS 11.4