Examine source code of LaZone

{
  "name": "LaZone",
  "description": "Extension liée à www.lazone.org, site littéraire communautaire.",
  "version": "0.1",
  "manifest_version": 2,
  "homepage_url": "http://www.lazone.org/",
  "applications": {
    "gecko": {
      "id": "lazone@lazone.org",
      "strict_min_version": "48.0",
      "strict_max_version": "*"
    }
  },
  "icons": {
    "16": "img/icons/favicon-16.png",
    "32": "img/icons/favicon-32.png",
    "48": "img/icons/favicon-48.png",
    "96": "img/icons/favicon-96.png",
    "128": "img/icons/favicon-128.png"
  },
  "background": {
    "scripts": [
      "lib/jquery-3.1.0.min.js",
      "lazone.js",
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "http://www.lazone.org/*",
        "http://www.lazone.localhost/*"
      ],
      "js": [
        "lib/jquery-3.1.0.min.js",
        "lazone.js",
        "content_script_lazone.js"
      ]
    }
  ],
  "permissions": [
    "http://www.lazone.org/*",
    "http://forum.lazone.org/*",
    "http://images.lazone.org/*",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "img/icons/favicon-48.png",
    "default_title": "LaZone",
    "default_popup": "popup.html",
    "browser_style": false
  },
  "web_accessible_resources": [
    "img/*.*"
  ]
}