Examine source code of OpenInSeedbox

{
  "manifest_version": 2,
  "name": "OpenInSeedbox",
  "version": "2.3resigned1",
  "description": "Envoyez votre .torrent vers notre seedbox !",
  "browser_action": {
    "default_icon": "icon.jpg",
    "default_popup": "popup.html"
  },
  "permissions": [
    "contextMenus",
    "storage",
    "notifications",
    "https://cp.hexicans.eu/*"
  ],
  "options_ui": {
    "page": "options.html",
    "chrome_style": true
  },
  "background": {
    "scripts": [
      "index.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{19b7acc2-5ed4-4186-a8be-89a452ea187d}"
    }
  }
}