Examine source code of Right Remover

{
  "manifest_version": 2,
  "name": "Right Remover",
  "description": "An extension for hiding properties you don't want to see anymore!",
  "version": "1.0",
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.rightmove.co.uk/*"
      ],
      "run_at": "document_start",
      "js": [
        "js/vendor.js",
        "js/content_script.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "js/vendor.js",
      "js/background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "https://www.rightmove.co.uk/*"
  ],
  "applications": {
    "gecko": {
      "id": "right-remover@example.com"
    }
  },
  "icons": {
    "128": "icon_128.png"
  }
}