Besides uBlock Origin, you can use DNS hosts file blocking. This has the extra benefit of making sites fast and reducing your data transfers.

Corporation block lists (e.g. Facebook, Google) https://github.com/jmdugan/blocklists/tree/master/corporatio...

"Someone Who Cares" list http://someonewhocares.org/hosts/

Ultimate Hosts Blacklist: 1 million blocked domains (once in a while you might need to unblock something) and also a bonus known hacking IP blocklist (prevents common hacking sources). https://github.com/mitchellkrogza/Ultimate.Hosts.Blacklist

If you have iOS device install an ad blocker app like AdBlock Fast, this plugs to practically all web sessions in the phone.