Examine source code of Optimize Cookies Tab

{
  "manifest_version": 2,
  "name": "Cookies Tab",
  "version": "18.1.0",
  "description": "True tab-level session isolation — separate cookies, storage, and identity per tab. Multiple accounts, one window.",
  "permissions": [
    "tabs",
    "storage",
    "contextualIdentities",
    "cookies",
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "activeTab",
    "<all_urls>"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Cookies Tab",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b5e3f1d2-8a7c-4b9e-9f6d-3c2b1a0e4f8c}",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}