Examine source code of Gender-Star-Remover

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "1.3",
  "description": "__MSG_extensionDescription__",
  "default_locale": "de",
  "icons": {
    "16": "icons/icon_16dp.png",
    "32": "icons/icon_32dp.png",
    "48": "icons/icon_48dp.png",
    "96": "icons/icon_96dp.png",
    "128": "icons/icon_128dp.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "gremove.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "gremove@spiritcroc.de"
    }
  }
}