if you're using android you can get add-ons for firefox. Also, you can use a firewall app like Netguard [1] to prevent apps from calling FB (graph.facebook.com)... I see most apps attempting to do this, and it's often the first thing they do.

There's similar setups on iOS, I am just not very familiar with the app names.

[1] https://github.com/M66B/NetGuard

At the risk of a bit of inconvenience, you could use Firefox Focus. Browse (it's only one tab), erase at the end of browsing and repeat. It also has built-in blockers of different kinds.