Examine source code of DevProblems: Developer Tips

{
  "manifest_version" : 3 ,
  "name" : "DevProblems: Developer Tips, News and Blogs",
  "version" : "1.0.1",
  "description" : "Fetch and display Developer Tips, News and Blogs from DevProblems",
  "action" : {
    "default_popup" : "popup.html",
    "default_icon" : {
      "16" : "images/icon-16.png",
      "48" : "images/icon-48.png",
      "128" : "images/icon-128.png"
    }
  },
  "icons" : {
    "16" : "images/icon-16.png",
    "48" : "images/icon-48.png",
    "128" : "images/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "gecko-noreply@devproblems.com",
      "strict_min_version": "109.0"
    },
    "gecko_android": {
      "id": "gecko-android-noreply@devproblems.com",
      "strict_min_version": "109.0"
    }
  }
}