[llccbb]

I had tried to implement similar blocks through uBlock Origin and similar browser addons, but this seems to be the most robust method as I use multiple different browsers on my primary computer.

Also, editing a hosts file does nothing on FB's end (which is what this article/discussion covers).

[mrighele]

You can use also a local DNS server for your whole home network. If you think it is too much work you can use something ready-made like pi-hole [1]. The nice part is that it will work also for your phone while you're on wifi.

[1] https://pi-hole.net