Examine source code of WebScope

{
  "name": "Webpage Info",
  "version": "1.0",
  "description": "Get webpage info",
  "manifest_version": 2,
  "permissions": [
    "activeTab"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "icons": {
    "16": "./logo.jpg"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "logo.jpg",
    "default_title": "Get Webpage Info",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e9c76522-ed54-4226-bdc0-ba53bc532c22}"
    }
  }
}