One huge help here is uBlacklist, which has filter lists for search engine results. Of course, the Chrome version will be crippled more as Google feels the knife in its revenue artery, so FF is advised!
I read that you can achieve similar results with uBlock Origin, but I indeed ended up using uBlacklist as you can block websites on the go and because it supports multiple search engines. It is working perfectly, one more reason to use FF I guess.
https://github.com/iorate/uBlacklist