Examine source code of HacKontext

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "1.4",
  "default_locale": "en",
  "homepage_url": "https://github.com/D3vil0per/hackontext",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "contextMenus",
    "activeTab",
    "cookies",
    "webRequest",
    "tabs",
    "clipboardWrite",
    "<all_urls>"
  ],
  "icons": {
    "16": "icons/menu-16.png",
    "32": "icons/menu-32.png",
    "48": "icons/menu-48.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "hackontext@d3vil0p3r",
      "strict_min_version": "60.0"
    }
  }
}