Earlier quoted context omitted.
There is a general rule of thumb that a person has to look at/interact with/be cognitively aware of an ad at least 7 times before any action can be taken. Showing ads across sites is just one more way to do that. In fact I would rather have relevant ads show up than irrelevant ads. I will admit that many companies out there do overdo their retargeting campaign though. That's what the company does that is mistaken, no…
The psychological requirements to achieve that task and your personal preferences are irrelevant, it is underhanded and obscene. I will not deny that this is a technological solution to a social problem, and yes it is mismatched, but web browsers need to be managed by responsible stewards that protect their users from abuse (it is abuse).
Although I can see how this would have some short term appeal to use Firefox. I may give it another spin hope it's fast and stable.