Examine source code of PowerBookmark

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "0.4.0",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "default_locale": "en",
  "permissions": [
    "contextMenus",
    "bookmarks",
    "tabs",
    "storage",
    "identity",
    "activeTab",
    "alarms",
    "downloads",
    "<all_urls>"
  ],
  "content_security_policy": "script-src 'self'; object-src 'none';",
  "browser_specific_settings": {
    "gecko": {
      "id": "powerbookmark@pow-projects.github.io",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "PowerBookmark",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ]
}