Examine source code of remove-linkedin-ads

{
  "manifest_version": 2,
  "name": "remove-ad",
  "version": "2.0",
  "description": "Removes annoying and disgusting Linkedin ads",
  "icons": {
    "48": "icons/Remove-ad.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.linkedin.com/*/*/"
      ],
      "js": [
        "remove-ad.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{85b0bcc4-51a6-4c3d-ab91-58853514252e}"
    }
  }
}