This video sums up your frustration quite nicely @paddyduke;
https://peertube.nz/w/ocxpCzSfdLTVDZ2aVdo47v
I highly recommend the #NoScript add-on. Not only does it filter out a lot of this garbage, which depends on running JavaScript from third-party domains, it allows stops a lot of tracking that goes on in the background.
Before I discovered NS, my laptops used to routinely crash. Brought down by the ludicrous amount of memory used, by all the JS running in the browser tabs I had open.