Examine source code of Dynamic Domain Redirector

{
  "manifest_version": 2,
  "name": "Dynamic Domain Redirector",
  "version": "1.3",
  "description": "Redirects one domain to another, configurable via options.",
  "permissions": [
    "webNavigation",
    "tabs",
    "storage",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png"
    },
    "default_title": "Domain Redirector"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c2351f49-0db3-4953-af75-5c61fdab93c4}"
    }
  }
}