Pihole saved my browsing while Firefox addons were down, I guess members of this forum are familiar with it so I’m going to share some guides and how to expand your blocklists.
PiHole DNS over HTTPS (DoH, using cloudflared) : https://scotthelme.co.uk/securing-dns-across-all-of-my-devices-with-pihole-dns-over-https-1-1-1-1/
PiHole DNS over TLS (DoT, using unbound): https://bartonbytes.com/posts/configure-pi-hole-for-dns-over-tls/
Blocklists, here you can find them, and also generate them for your needs (blocked pornsites etc): https://firebog.net/
Importing blocklists: While logged in to raspberry pi type;
sudo vim /etc/pihole/adlists.list
save and exit edited file, when done run
pihole -g to make pihole refresh your blocklist.
Feel free to add suggestions and guides, I know there is Wireguard option on Pi, but didn’t try it myself.