Examine source code of Amazon Container

{
  "manifest_version": 2,
  "name": "Amazon Container",
  "version": "2.0.1",
  "description": "Amazon Container isolates your Amazon activity from the rest of your web activity in order to prevent Amazon from tracking you outside of the Amazon ecosystem via third party cookies.",
  "icons": {
    "48": "icon.svg",
    "96": "icon.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "@contain-amzn-1",
      "strict_min_version": "67.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "homepage_url": "https://github.com/krober/contain-amazon",
  "permissions": [
    "<all_urls>",
    "browsingData",
    "contextualIdentities",
    "cookies",
    "management",
    "storage",
    "tabs",
    "webRequestBlocking",
    "webRequest"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}