Examine source code of LiveHosts

{
  "manifest_version": 2,
  "name": "LiveHosts",
  "version": "1.1.3",
  "browser_specific_settings": {
    "gecko": {
      "id": "livehosts@aioros.net",
      "strict_min_version": "57.0"
    }
  },
  "icons": {
    "16": "icons/livehosts-16.png",
    "48": "icons/livehosts-48.png",
    "128": "icons/livehosts-128.png"
  },
  "description": "Switch your host/IP mappings in real time without editing your hosts file",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html"
  },
  "browser_action": {
    "default_icon": {
      "19": "icons/livehosts-19.png",
      "38": "icons/livehosts-38.png"
    },
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "js": [
        "switcher.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*",
        "file://*/*"
      ]
    }
  ],
  "web_accessible_resources": [
    "config.json"
  ],
  "incognito": "spanning",
  "permissions": [
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "storage",
    "http://*/*",
    "https://*/*"
  ]
}