Examine source code of Form Filler

{
  "manifest_version": 2,
  "name": "Form Filler",
  "version": "0.3resigned1",
  "description": "Copy form data to another form FMC-CRM",
  "icons": {
    "48": "icons/copy.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "permissions": [
    "menus",
    "activeTab",
    "storage",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icons/copy.png",
    "default_popup": "form.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7b5e32eb-8648-4164-ab1f-b8dd0fc244e1}"
    }
  }
}