Remove sponsored posts on Facebook feed

FB_no_sponsored.user.js

// ==UserScript==
// @name         No Sponsored FB posts
// @description  Hide Sponsored posts on Facebook
// @namespace    http://karmalakas.lt/
// @version      1.5.13
// @author       Karmalakas
// @updateURL    https://gist.github.com/Karmalakas/b0860e39ad26857c285d6bad4884bea6/raw/FB_no_sponsored.user.js
// @downloadURL  https://gist.github.com/Karmalakas/b0860e39ad26857c285d6bad4884bea6/raw/FB_no_sponsored.user.js
// @supportURL   https://gist.github.com/Karmalakas/b0860e39ad26857c285d6bad4884bea6
// @match        https://www.facebook.com/
// @exclude      /^https:\/\/www\.facebook\.com\/.+/
// @require      https://code.jquery.com/jquery-2.2.4.min.js
// @run-at       document-idle
// @grant        none
// ==/UserScript==

(function($) {
    'use strict';

    var mutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver,
        body, stream, observer;

    var posts_selectors = ['> div'];

    function isSponsored(post) {
        var span = post.querySelector('span[dir=auto] span[id]');

        if (!span) {
            return false;
        }

        var textSpan = span.querySelector('a span');

        return headerHasSponsored(textSpan);
    }

    function headerHasSponsored(textSpan)
    {
        var string = '',
            strings = $(textSpan).children();

        while (strings.length) {
            strings = strings.children();
        }

        strings = strings.end();

        if (strings.length === 1 && strings[0].innerText.trim().toLowerCase() === 'sponsored') {
            return true;
        }

        strings = strings.toArray();
        var text;

        $.each(strings, function(i, el) {
            el = $(el);
            text = el.html();

            if (text.indexOf('<') === 0 || !el.is(':visible') || el.width() <= 0 || el.height() <= 0 || el.css('opacity') <= 0 || el.css('font-size') <= 0 || el.css('position') == 'absolute') {
                return;
            }

            string = string + text.toLowerCase();
        });

        return isStringSponsored(string)
    }

    function isStringSponsored(checkString)
    {
        const string = 'sponsored'
        const check = checkString.toLowerCase()

        if (string.length !== check.length) {
            return false
        }

        const stringArr = string.split('')
        const checkArr = checkString.split('')

        for (const letter of checkArr) {
            let index = stringArr.indexOf(letter)

            if (index > -1) {
                stringArr.splice(index, 1)
            }
        }

        return stringArr.length === 0
    }

    function process() {
        // Remove rights side sponsored block
        clearRightCol();

        // Locate the stream every iteration to allow for FB SPA navigation which replaces the stream element
        stream = document.querySelector('div[role="feed"]');
        if (!stream) {
            return;
        }

        var i, j, posts;
        for (i = 0; i < posts_selectors.length; i++) {
            posts = stream.querySelectorAll(':scope ' + posts_selectors[i]);

            if (!posts.length) {
                return;
            }

            for (j = 0; j < posts.length; j++) {
                if (isSponsored(posts[j])) {
                    posts[j].remove();
                }
            }
        }
    }

    function clearRightCol() {
        var rightCol = $('#ssrb_rhc_start + div');

        if (!rightCol.length) {
            return false;
        }

        var text,
            firstDiv = rightCol.find('> div').first();

        $.each(firstDiv.children(), function(i, el) {
            el = $(el);

            if (headerHasSponsored(el.find('h3'))) {
                el.remove();
            }
        });
    }

    if (mutationObserver) {
        body = document.querySelector('body');
        if (!body) {
            return;
        }

        (new mutationObserver(process)).observe(body, {
            'childList': true,
            'subtree': true
        });
    }
})(jQuery);

Hide Sponsored posts on Facebook stream.

NB: Facebook changes their sponsored posts logic from time to time (sometimes even 5 times per day), so this script might fail at some point until I implement changes

---

This only works with TamperMonkey (or similar) extension. Supported browsers are Chrome, Firefox, Edge (maybe others too).

TamperMonkey for:

• Chrome/Edge: https://chrome.google.com/webstore/detail/tampermonkey/dhdgffkkebhmkfjojejmpbldmpobfkfo
• FF: https://addons.mozilla.org/en-US/firefox/addon/tampermonkey/

Once you have TamperMonkey installed, just go to the @downloadurl you see in a script.

If later TM fails to update script, just go to @updateURL you see in a script. This should trigger the update in a new window with TM open.

Any questions or suggestions are welcome.

---

If you by some weird accident found this and like the script, please consider keeping me scripting 😄