What is the best way to deal with this as an end user?
I see there is a Firefox plugin here: https://addons.mozilla.org/en-US/firefox/addon/nofbclid/
But perhaps it is better to deal with at a lower level, like on the firewall. Any advice would be welcome.
Good find, the source is here: https://github.com/nboughton/nofbclid/blob/master/nofbclid.j...
I found a slightly better one that also blocks google UTM trackers as well, here:
https://addons.mozilla.org/en-US/firefox/addon/utm-tracking-...
and source here: