Examine source code of Page Title Copy

{
  "manifest_version": 2,
  "name": "Page Title Copy",
  "version": "1.4",
  "description": "Adds context menu items which copy the active tab title to the clipboard.",
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  },
  "permissions": [
    "contextMenus",
    "activeTab",
    "clipboardWrite"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": {
      "48": "icons/icon.svg",
      "96": "icons/icon.svg"
    },
    "default_popup": "popup/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7c814ec4-4f7d-4de5-b8e7-89543b9a54b3}"
    }
  }
}