Examine source code of Lyncis Resizer

{
  "manifest_version": 2,
  "name": "Lyncis Resizer",
  "version": "2.2.1resigned1",
  "default_locale": "en",
  "description": "__MSG_extDesc__",
  "icons": {
    "32": "icons/Resizer32.png",
    "48": "icons/Resizer48.png"
  },
  "browser_action": {
    "default_icon": "icons/Resizer32.png",
    "default_title": "Lyncis Resizer",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{210f9aa7-1f34-4862-9920-8601768263f4}"
    }
  }
}