EFF's Privacy Badger and Firefox's (experimental) first-party isolation go _some_ way to mitigating this bad behaviour. But taking special measures shouldn't be necessary.
I recently reformatted, switched to Firefox, and installed Multi-Containers, Auto-Delete, and uBlock Origins; open to suggestions on what other robust, stable, mainstreams extensions I should try :)
Thx!
But I agree that this level of privacy invasion should be illegal.