Took about 3 seconds to process the first Facebook page, but, it didn't hide Reels, which is all I really wanted, so, I removed it. Zero stars. (Win 11; Firefox 133.0.3; yes, I closed/re-opened the browser with the app enabled)

Did not work at all for reddit

It does nothing on my samsung phone. I've tried refreshing the browser but I can still see comments and recommended videos...