Remove Twittertrends and Sponsored Tweets/Follow Suggestions - Tampermonkey Script

removeTwitterTrendsSponsors.js

// ==UserScript==
// @name         Remove Twittertrends and Sponsored Tweets/Follow Suggestions
// @namespace    http://webfussel.de
// @version      1.5.1
// @description  Remove those stupid twitter trends and sponsored ads / follow suggestions
// @author       webfussel
// @match        https://twitter.com/*
// @grant        none
// ==/UserScript==
const sponsored = ['Gesponsert', 'Sponsored']
const sponsoredRegexp = new RegExp(sponsored.join('|'))

const removeElement = e => {
  // Remove sponsored
  // Tweets
  if (e.matches('[data-testid="placementTracking"]') && e.innerText.match(sponsoredRegexp)) e.parentElement.parentElement.innerHTML = ''
  // Follow Suggestions
  if (e.matches('[data-testid="UserCell"]') && e.innerText.match(sponsoredRegexp)) e.remove()
}

const removeTrends = () => {
  // Twitter Blue Menu Point
  document.querySelector('[aria-label="Twitter Blue"]')?.remove()
  // Trends
  document.querySelector('[href*="explore"]')?.remove()
  const lists = document.querySelectorAll('[aria-labelledby^="accessible-l"]')
  lists?.forEach(element => {
    if (element.querySelector(':scope > h1')?.innerText.toLowerCase().indexOf('trends') > -1) {
      element.parentElement.parentElement.remove()
    }
  })
}

const observer = new MutationObserver(mutations => {
  removeTrends()
  mutations.forEach(mutation => {
    mutation.addedNodes.forEach(removeElement)
  })
})

observer.observe(document.body, {
  childList: true
  ,subtree: true
  ,attributes: false
  ,characterData: false
})

// ==UserScript==
// @name         Remove Twittertrends and Sponsored Tweets/Follow Suggestions
// @namespace    http://webfussel.de
// @version      1.1
// @description  Remove those stupid twitter trends and sponsored ads / follow suggestions
// @author       webfussel
// @match        https://twitter.com/*
// @grant        none
// ==/UserScript==

(() => {
    var observer = new MutationObserver((mutations) => {

        // Remove sponsored
        // Tweets
        const sponsored = ['Gesponsert', 'Sponsored']
        const sponsoredRegexp = new RegExp(sponsored.join('|'))
        ;[...document.querySelectorAll('[data-testid="placementTracking"]')]?.forEach(ad => {
            if (ad.innerText.match(sponsoredRegexp)) ad.parentElement.parentElement.innerHTML = ''
        })
        // Follow Suggetions
        ;[...document.querySelectorAll('[data-testid="UserCell"]')]?.forEach(ad => {
            if (ad.innerText.match(sponsoredRegexp)) ad.remove()
        })

        // Remove trends
        document.querySelector('[href*="explore"]')?.remove()
        const lists = document.querySelectorAll('[aria-labelledby^="accessible-l"]')
        lists?.forEach(element => {
            if (element.querySelector(':scope > h1')?.innerText.toLowerCase().indexOf('trends') >-1) {
                element.parentElement.parentElement.parentElement.remove()
            }
        })
})

    observer.observe(document.body, {
        childList: true
        ,subtree: true
        ,attributes: false
        ,characterData: false
    })

})();

Thanks! I implemented it :)