Examine source code of Tab Rotator

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "2.0.3resigned1",
  "homepage_url": "__MSG_extensionHomepage__",
  "description": "__MSG_extensionDescription__",
  "applications": {
    "gecko": {
      "id": "tabrotator@davidfichtmueller.de"
    }
  },
  "developer": {
    "name": "David Fichtmueller"
  },
  "icons": {
    "48": "icons/tabrotator_48.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "default_locale": "en",
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_action": {
    "browser_style": true,
    "default_icon": "icons/tabrotator_48_deactive.png",
    "default_title": "__MSG_startRotating__"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Shift+F11"
      }
    }
  },
  "background": {
    "scripts": [
      "tabrotator.js"
    ]
  }
}