Examine source code of Server Status

{
  "manifest_version": 2,
  "name": "Server Status",
  "version": "1.5",
  "author": "Teal Dulcet",
  "description": "Quickly view basic info about every webpage, including server location, IP addresses, certificate issuer and expiration date, HTTP status code and load time.",
  "homepage_url": "https://github.com/tdulcet/Server-Status",
  "icons": {
    "32": "icons/icon_32.png",
    "64": "icons/icon_64.png",
    "128": "icons/icon_128.png"
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "tabs",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "dns",
    "notifications",
    "idle",
    "alarms",
    "privacy",
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": {
      "32": "icons/icon_32.png",
      "64": "icons/icon_64.png",
      "128": "icons/icon_128.png"
    },
    "default_title": "Server Status, ⟳ Refresh page to show",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "options/options.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Alt+S"
      },
      "description": "Open popup"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "server-status@tealdulcet.com",
      "strict_min_version": "119.0"
    }
  }
}