Examine source code of Textdrip

{
  "manifest_version": 3,
  "name": "Textdrip",
  "version": "12.8",
  "description": "Textdrip Browser Extension for Firefox",
  "browser_specific_settings": {
    "gecko": {
      "id": "{34982450-4794-47e8-9c6b-944d5fb5e72d}",
      "strict_min_version": "109.0"
    }
  },
  "icons": {
    "36": "icons/icon-36.png",
    "48": "icons/icon-48.png",
    "72": "icons/icon-72.png",
    "96": "icons/icon-96.png",
    "144": "icons/icon-144.png",
    "192": "icons/icon-192.png",
    "512": "icons/icon-512.png"
  },
  "permissions": [
    "storage",
    "scripting",
    "activeTab",
    "tabs",
    "alarms"
  ],
  "host_permissions": [
    "*://*.app.textdrip.com/*",
    "*://*.landlineremover.com/*",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_title": "Textdrip",
    "default_icon": "icons/icon-48.png",
    "default_popup": "popup/index.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "popup/assets/js/jquery.min.js",
        "popup/assets/js/moment.js",
        "mapping/mapping_utils.js",
        "picker/contentPicker.js",
        "main.js"
      ],
      "css": [
        "picker/contentPicker.css"
      ],
      "all_frames": true,
      "run_at": "document_idle"
    },
    {
      "matches": [
        "*://*.textdrip.app/*"
      ],
      "js": [
        "popup/assets/js/jquery.min.js",
        "top_banner.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "popup/*",
        "picker/*",
        "mapper.html",
        "mapper.js",
        "mapper.css",
        "native_selectors.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}