Examine source code of BookFusion

{
  "manifest_version": 2,
  "name": "BookFusion",
  "description": "BookFusion Browser Extension",
  "version": "1.2.0",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "default_locale": "en",
  "permissions": [
    "storage",
    "http://*/*",
    "https://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ed1fc2b7-0910-4107-bc02-b0fa72273b31}",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ],
        "optional": [
          "technicalAndInteraction"
        ]
      }
    }
  },
  "web_accessible_resources": [
    "content-scripts/content.css",
    "assets/*"
  ],
  "background": {
    "persistent": false,
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    }
  ],
  "browser_action": {}
}