Examine source code of Server View

{
  "applications": {
    "gecko": {
      "id": "{bc6f8ef6-a30f-11e5-bf7f-feff819cdc9f}",
      "strict_min_version": "48.0"
    }
  },
  "manifest_version": 2,
  "name": "Server View",
  "version": "0.0.33resigned1",
  "description": "View server information.\nIcon from: https://www.iconfinder.com/iconsets/3d-bluefx-desktop-icons",
  "icons": {
    "48": "icon.png"
  },
  "permissions": [
    "<all_urls>",
    "webRequest"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": "icon_menu.png",
    "default_title": "Server View",
    "default_popup": "popup.html"
  }
}