Examine source code of superExpander

{
  "manifest_version": 2,
  "name": "My Text Expander",
  "version": "1.0",
  "description": "Uma extensão que expande atalhos em textos completos.",
  "background": {
    "scripts": [
      "background/background.js"
    ]
  },
  "options_page": "options/options.html",
  "permissions": [
    "storage",
    "activeTab",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "browser_action": {
    "default_popup": "popup/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{599abb7e-0c12-4b13-8a07-dba2f02a1834}"
    }
  }
}