Examine source code of FastNews.kiwi

{
  "name": "FastNews.kiwi",
  "version": "2.1resigned1",
  "manifest_version": 2,
  "description": "Vérifiez les nouveautés de vos sites préférés en 1 click",
  "homepage_url": "https://fastnews.kiwi/",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "default_locale": "en",
  "background": {
    "scripts": [
      "js/jq.js",
      "js/datas.js",
      "src/bg/background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": "icons/icon19_off.png",
    "default_title": "FastNews.kiwi",
    "default_popup": "src/browser_action/browser_action.html"
  },
  "permissions": [
    "notifications",
    "tabs",
    "storage",
    "http://*/*",
    "https://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/jq.js",
        "js/datas.js",
        "src/inject/inject.js"
      ],
      "all_frames": false,
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6415f60b-671b-4163-b593-51d2214a5df5}"
    }
  }
}