Hosts file will not block websites, no matter what I do.

[VeryFrustrated]

Hi- I'm sort of your standard internet user, so I'm not super tech savvy but I'm familiar with blocking websites using the hosts file and have done so many times without difficulty. For some reason, it no longer seems to work. I'm trying to take a social media break, and I need to block the websites I usually go to in order to make it easy for myself. Including Facebook, Reddit, etc...

I got the full GitHub list of domains and IPS for Facebook to block so it's not that I haven't included all the IPs.
I've tried using both 127.0.0.1 and 0.0.0.0 ... nothing. I've tried changing the formatting. Nothing.

I'm at my wits end. I'm so frustrated. What can I do?

Thank you so much in advance.

[VeryFrustrated]

Bumping this; does anyone have any ideas?

[BC_Programmer]

The HOSTS file cannot block IP addresses. You can use it to "block" Domains by causing the host name to map to the local loopback address.

I'd expect a "127.0.0.1 www.facebook.com" line would probably get you most of the way to blocking facebook.

Remember you need to reboot for the HOSTS file changes to take effect.