Examine source code of Page Pilot

{
  "manifest_version": 2,
  "name": "Page Pilot",
  "version": "1.0",
  "description": "Dark mode toggle, word counter, screenshot tool, and quick translator.",
  "permissions": [
    "activeTab",
    "contextMenus",
    "tabs",
    "tabGroups"
  ],
  "icons": {
    "16": "icon16.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "applications": {
    "gecko": {
      "id": "smarttools@youremail.com"
    }
  }
}