Mobile Facebook cleaner - removes sponsored posts, reels, People You May Know, and posts from non-followed accounts

mobile-facebook-cleaner.user.js

// ==UserScript==
// @name         Facebook Mobile Cleaner
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Removes sponsored posts, reels, people you may know, and posts from people you don't follow on mobile Facebook. Inspired by F.B. Purity.
// @run-at       document-idle
// @author       You
// @match        https://m.facebook.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=facebook.com
// @grant        none
// ==/UserScript==

(function () {
    'use strict'

    function getFeedContainer() {
        const root = document.querySelector('#screen-root')
        if (!root) return null
        return root.querySelector(':scope > div > div')
    }

    function walkToFeedItem(el) {
        const feed = getFeedContainer()
        if (!feed) return null
        while (el && el.parentElement && el.parentElement !== feed) {
            el = el.parentElement
        }
        return el && el.parentElement === feed ? el : null
    }

    function hide(item) {
        if (!item || item.classList.contains('fbp-hidden')) return
        item.classList.add('fbp-hidden')
        item.style.setProperty('display', 'none', 'important')
    }

    function clean() {
        const feed = getFeedContainer()
        if (!feed) return

        feed.querySelectorAll('span').forEach(span => {
            if (span.textContent.trimStart().startsWith('Sponsored')) {
                hide(walkToFeedItem(span))
            }
        })

        feed.querySelectorAll('h2').forEach(h2 => {
            if (h2.textContent.trim() === 'Reels') {
                hide(walkToFeedItem(h2))
            }
        })

        ;['People You May Know', 'People you may know'].forEach(text => {
            feed.querySelectorAll('span, div, h3').forEach(el => {
                if (el.textContent.trim() === text) {
                    hide(walkToFeedItem(el))
                }
            })
        })

        feed.querySelectorAll('button, [role="button"], a').forEach(el => {
            const t = el.textContent.trim()
            if (t === 'Follow' || t === 'Join') {
                hide(walkToFeedItem(el))
            }
        })
    }

    window.setTimeout(clean, 1000)

    let timer
    new MutationObserver(() => {
        clearTimeout(timer)
        timer = setTimeout(clean, 200)
    }).observe(document.body, { childList: true, subtree: true })
})()