Got it. Yeah, I find highly-targeted ads to be creepy as well, and started using ffx with adblock for all browsing. I use Chrome for logged-in web use (gmail, fb, etc).
I don't get relevant ads anymore, but instead I get lowest-common-denominator ads. It's... worse!
I don't like the idea of targeted ads, but the consequence feels pretty minimal I have to say. The worst thing that happens is I buy a product that I turn out not to be happy with / wasn't worth the money?
If regretted purchases were rampant it'd be a problem worth solving, but it doesn't seem to be.
Just some thoughts I've been exploring. I'm not exactly planning on going back to wilfully being tracked.