Examine source code of Zoho Network Inspector

{
  "manifest_version": 2,
  "name": "Zoho Network Inspector",
  "version": "0.0.1",
  "description": "A Firefox extension to inspect Zoho inbox network requests.",
  "author": "Vikalp Kumar",
  "permissions": [
    "webRequest",
    "tabs",
    "storage",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "final16.png",
      "48": "final48.png",
      "128": "final128.png"
    }
  },
  "icons": {
    "16": "final16.png",
    "48": "final48.png",
    "128": "final128.png"
  },
  "content_security_policy": "script-src 'self'; object-src 'self';",
  "browser_specific_settings": {
    "gecko": {
      "id": "{f409dbdd-e13d-48c7-bb5b-3dcb176b71d7}"
    }
  }
}