Examine source code of Meilleurtaux Box

{
  "manifest_version": 2,
  "name": "Meilleurtaux Box",
  "description": "Meilleurtaux Box, ajoutez une dimension Crédit à vos recherches immobilières, et retournez facilement vers vos annonces favorites",
  "version": "1.2.3resigned1",
  "permissions": [
    "tabs",
    "<all_urls>",
    "storage",
    "unlimitedStorage",
    "webNavigation"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "common.js",
        "page-parser.js",
        "bar.js"
      ],
      "css": [
        "app.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_action": {
    "default_icon": {
      "19": "img/icons/favicon_normal.png",
      "38": "img/icons/favicon_normal@2x.png"
    },
    "default_popup": "html/box.html"
  },
  "icons": {
    "16": "img/logo/plugin.png",
    "48": "img/logo/plugin@3x.png",
    "128": "img/logo/plugin@8x.png"
  },
  "web_accessible_resources": [
    "img/*",
    "fonts/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b43ee26a-58e0-4337-b94d-db5fae23827a}"
    }
  }
}