Examine source code of GoLimitless Daily

{
  "manifest_version": 2,
  "name": "GoLimitless Daily",
  "version": "1.0",
  "description": "Daily inspiration in your browser. Powered by GoLimitlesss.",
  "icons": {
    "16": "16GLim.png",
    "48": "48GLim.png",
    "128": "128GLim.png"
  },
  "background": {
    "scripts": [
      "background-firefox.js"
    ]
  },
  "permissions": [
    "tabs"
  ],
  "chrome_url_overrides": {
    "newtab": "newtab-firefox.html"
  },
  "browser_action": {
    "default_icon": {
      "16": "16GLim.png",
      "48": "48GLim.png",
      "128": "128GLim.png"
    }
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{e17de18f-f75f-4ea9-8b2a-6c4e920a8e80}"
    }
  }
}