Examine source code of Web Optimizer DOS

{
  "manifest_version": 2,
  "name": "Web Optimizer",
  "version": "3.0",
  "description": "Speeds up the loading and operation of web pages by disabling heavy visual effects and optimizing JavaScript",
  "applications": {
    "gecko": {
      "id": "web-optimizer@manus.dev"
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/early-optimizer.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/optimizer.js"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "content/styles/*.css"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}