Like Remover

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Like Remover",
  "version": "1.0",
  "description": "An extension that removes all like/retweet/favorite counters. Because you are worth more.",
  "browser_action": {
    "default_icon": "icon.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.facebook.com/*"
      ],
      "js": [
        "hide_facebook_likes.js"
      ]
    },
    {
      "matches": [
        "*://twitter.com/*"
      ],
      "js": [
        "hide_twitter_numbers.js"
      ]
    },
    {
      "matches": [
        "*://instagram.com/*"
      ],
      "js": [
        "hide_insta_likes.js"
      ]
    }
  ],
  "permissions": [
    "activeTab"
  ]
}