Examine source code of Lien Solidaire

{
  "manifest_version": 2,
  "name": "Lien Solidaire",
  "version": "1.0.0",
  "description": "Ça commence avec vous !",
  "homepage_url": "http://liensolidaire.fr",
  "icons": {
    "48": "assets/icons/partner-48.png"
  },
  "browser_action": {
    "default_icon": "assets/icons/not-partner-48.png",
    "default_popup": "popup/page.html"
  },
  "options_ui": {
    "page": "options/index.html",
    "chrome_style": true
  },
  "permissions": [
    "tabs",
    "<all_urls>",
    "storage",
    "cookies"
  ],
  "background": {
    "scripts": [
      "assets/libraries/browser-polyfill.min.js",
      "common.js",
      "background.js"
    ]
  },
  "web_accessible_resources": [
    "notification/element.html",
    "notification/styles.css",
    "assets/icons/partner-48.png",
    "assets/icons/not-partner-48.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2e7b7a34-88c8-4a3a-b9cf-d4067a0e79f8}"
    }
  }
}