Examine source code of Performance Seed Freebox

{
  "name": "Performance Seed Freebox",
  "version": "1.6.1",
  "manifest_version": 2,
  "description": "Affiche l'efficacité des seeds sur l'interface FreeboxOS",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "author": "Jack NUMBER",
  "permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{cbbd318d-d168-4809-9e0c-fec4fd26573b}"
    }
  }
}