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All the more reason to block their widgets on other websites, using something like Ghostery or Disconnect.

Another alternative is EFF's PrivacyBadger:

All this in addition to an ad-blocker (such as uBlock Origin) of course.

I prefer uMatrix[0] (by the uBlock author) which gives absolute control over third (and first) party requests.

I don't even subscribe to the built-in Adblock filter because of my default-deny rule. It also negates the need for Privacy Badger and similar.

See the screenshots for how it works (similar to, but more granular than, uBlock advanced mode).

Also in combination with NoScript your life will be much better.