Examine source code of I Love PDF 3

{
  "manifest_version": 3,
  "name": "I Love PDF 3",
  "version": "1.5",
  "description": "iLovePDF3 – Free browser extension. No limits, no login, no subscription.",
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "16x16.png",
      "48": "48x48.png",
      "128": "128x128.png"
    }
  },
  "icons": {
    "16": "16x16.png",
    "48": "48x48.png",
    "128": "128x128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "support@ilovepdf3.com",
      "strict_min_version": "109.0"
    }
  }
}