Greasemonkey scripts

hackernews-favicons.js

// ==UserScript==
// @name     Favicons for HackerNews
// @version  1
// @grant    none
// ==/UserScript==

for(let link of document.querySelectorAll('.titlelink')) {
  const domain = new URL(link.href).hostname
  const imageUrl = `https://icons.duckduckgo.com/ip3/${domain}.ico`
  const image = document.createElement('img')
  image.src = imageUrl
  image.width = 16
  image.height = 16
  image.style.paddingRight = '0.25em'
  image.style.paddingLeft = '0.25em'
  link.prepend(image)
}

lobsters-favicons.js

// ==UserScript==
// @name     Favicons for Lobsters
// @version  1
// @grant    none
// ==/UserScript==

for(let element of document.querySelectorAll('.story .details')) {
  const link = element.querySelector('.u-url')
  const icon = element.querySelector('.byline > a > img')

  const domain = new URL(link.href).hostname
  const imageUrl = `https://icons.duckduckgo.com/ip3/${domain}.ico`

  icon.src = imageUrl
  icon.srcset = ""
}