clear-sponsored-facebook-posts.js

const clearVisibleAds = () => document.querySelectorAll('div[role=feed]>div[data-pagelet]').forEach(postDomEl => {
    try {
        Array.from(postDomEl.querySelectorAll('a[role=link]')[3].querySelectorAll(':scope>span>span')[1].children).forEach((el) => {
            // Clear mock span text items to be able to read the actual text below
            if(el.style.position == 'absolute') el.remove()
        });
        if(postDomEl.querySelectorAll('a[role=link]')[3].text == 'Sponsored') {
            postDomEl.remove()
            console.info('Cleared an ad');
        }
    }
    catch(err) { /* noop, if above doesn't work then we most probably aren't seeing a sponsored post */}
});
// Run the cleaner every 250th ms, and store the interval timer id under window if somebody wants to clear it
window.fbAdClearer = window.setInterval(clearVisibleAds, 250);