Examine source code of uAlias

{
  "manifest_version": 2,
  "name": "uAlias",
  "version": "1.4resigned1",
  "applications": {
    "gecko": {
      "id": "ualias@e7b5c417-f0a0-4e60-9888-6a3bd85b23ed.org",
      "strict_min_version": "42.0"
    }
  },
  "description": "Associate short strings, aliases, with URLs",
  "icons": {
    "48": "icon_48.png",
    "64": "icon_64.png",
    "96": "icon_96.png"
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "omnibox": {
    "keyword": "u"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html"
  }
}