Examine source code of Soeia

{
  "manifest_version": 2,
  "name": "Soeia",
  "version": "1.0.1",
  "description": "__MSG_extension_description__",
  "homepage_url": "https://soeia.org",
  "default_locale": "fr",
  "icons": {
    "48": "assets/icons/icon-48.png"
  },
  "browser_action": {
    "default_icon": "assets/icons/icon-48.png"
  },
  "permissions": [
    "search",
    "storage",
    "https://soeia.org/*",
    "notifications"
  ],
  "chrome_url_overrides": {
    "newtab": "pages/new-tab/index.html"
  },
  "background": {
    "scripts": [
      "assets/lib/browser-polyfill.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://soeia.org/*"
      ],
      "js": [
        "assets/lib/browser-polyfill.js",
        "content-script.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7a102bff-6b7d-4e54-8125-adf590b49456}"
    }
  }
}