If anyone is interested in how to set up a network-wide tracker blocker then I've written some guides on how to configure Pi-hole as a router and Wi-Fi range extender. This means you can force all traffic through your custom DNS, even devices from Google and Amazon that don't respect DHCP.
https://unop.uk/pi-hole-extended-part-1/
https://unop.uk/pi-hole-extended-part-2/
It's still worth installing privacy add-ons to Firefox but this helps with some profiling intrusions in mobile apps and Chromecasts etc. It also helps protect your less technical family members a little, although it obviously can't keep them completely safe from surveillance. Education is an important aspect too.