Examine source code of Regexer

{
  "manifest_version": 2,
  "name": "Regxer",
  "version": "1.1.2resigned1",
  "description": "Quickly check matches in a string against a regular expression.",
  "homepage_url": "https://github.com/tushararora/regexer",
  "icons": {
    "32": "images/icon_32.svg",
    "48": "images/icon_32.svg",
    "96": "images/icon_32.svg"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_icon": "images/icon_32.svg",
    "default_title": "Regexer",
    "default_popup": "addon/popup/index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cf5896d5-6351-43c7-9efd-7d6ee12910f9}"
    }
  }
}