Examine source code of mondefox

{
  "manifest_version": 2,
  "name": "mondefox",
  "version": "0.7resigned1",
  "license": "GPLv3",
  "default_locale": "fr",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "https://github.com/tychobrailleur/mondefox",
  "icons": {
    "64": "icons/social-64.png"
  },
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.lemonde.fr/*"
      ],
      "js": [
        "data/cleanup.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "jid1-OOH6V67LvbAGCA@jetpack"
    }
  }
}