There's a concern that the developer of FB-purity passed away: https://www.reddit.com/r/facebook/comments/1tw2sf9/real_conc...

Oh dear. Hope he's ok. I got a lot of value out of FB-purity.

I was gonna say that uBlock still works for me on facebook, but yea I forgot I had purity quietly working for me for all those years

Same. FBP has been effectively perfect for over a decade now. I don't understand how uBlock Origin can't just take what FBP is doing and apply it there.

You don't understand that the problem is not about the solutions. Every issue has solution.

The problem is every time a solution is added to uBO, they will counter that. An extension will work great if the websites don't target on that.