Examine source code of CookieJar

{
  "manifest_version": 2,
  "name": "CookieJar",
  "version": "2.3.0",
  "author": "Kalpaj Agrawalla",
  "description": "Provides access to view unlimited premium and non-premium articles.",
  "icons": {
    "16": "src/icons/16.png",
    "32": "src/icons/32.png",
    "48": "src/icons/48.png",
    "128": "src/icons/128.png"
  },
  "browser_action": {
    "default_title": "CookieJar",
    "default_icon": "src/icons/48.png"
  },
  "background": {
    "scripts": [
      "src/scripts/background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "run_at": "document_start",
      "all_frames": false,
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "src/scripts/content.js"
      ]
    }
  ],
  "minimum_chrome_version": "70",
  "permissions": [
    "<all_urls>",
    "tabs",
    "storage",
    "cookies",
    "contextMenus",
    "browsingData",
    "webRequest",
    "webRequestBlocking"
  ]
}