Goodness gracious, I hadn't realised adverts had gotten that bad again. You'd think with the ever-increasing backlash against web site advertisement they'd balk at such behaviour on their web site.
In the past I was against ad-blockers, thinking that websites need a business model to survive and that subscriptions can't work for everyone. But this has turned into a serious assault on privacy.
So nowadays I have uBlock Origin, Privacy Badger, the "Tracking Protection" in Firefox enabled by default and I'm seriously considering NoScript, too bad it wasn't available for Firefox Android last time I checked.
For your information you can get the Firefox for Android NoScript porting with the cheeky (but somewhat relevant) name NoScript Anywhere++ (NSA++) here: https://noscript.net/nsa/
It's quite experimental, the UI isn't great if you have a small phone but it works.
I started using NoScript because my poor i3-powered laptop simply can't browse a lot of sites and maintain acceptable performance otherwise. Installing NoScript made the computer feel 10x faster.