Examine source code of Window Title Hider

{
  "manifest_version": 2,
  "name": "Window Title Hider",
  "version": "0.3resigned1",
  "description": "Hides the browser window title on the task bar (shows a text first)",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "menus",
    "storage",
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{74fe5dfe-e34b-4d80-b24d-a4080afc6e40}"
    }
  }
}