Examine source code of GNUSocial search

{
  "manifest_version": 2,
  "name": "GNUSocial search",
  "version": "2.1resigned1",
  "description": "Redirects text search to gnusocial nodes",
  "applications": {
    "gecko": {
      "strict_min_version": "52.0a1",
      "id": "{240d9f55-64a8-4615-a9f9-5b42740c0803}"
    }
  },
  "icons": {
    "64": "icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "preferences/options.html"
  },
  "permissions": [
    "webNavigation",
    "storage",
    "contextMenus",
    "activeTab"
  ]
}