Examine source code of Gender Changer

{
  "manifest_version": 2,
  "name": "Gender Changer",
  "short_name": "GenderChange",
  "description": "Ändert die Männliche ausdrucksform zu einer Weiblichen  * z.b (Arbeiter zu Arbeiter*innen)",
  "version": "1.0.72resigned1",
  "update_url": "https://clients2.google.com/service/update2/crx",
  "permissions": [
    "tabs",
    "http://*/*",
    "https://*/*",
    "*://*/*"
  ],
  "web_accessible_resources": [
    "font/*.woff2"
  ],
  "background": {
    "persistent": false,
    "scripts": [
      "jquery/jquery-3.2.1.min.js"
    ]
  },
  "icons": {
    "16": "images/icon16.png",
    "24": "images/icon24.png",
    "32": "images/icon32.png",
    "128": "images/icon128.png"
  },
  "browser_action": {
    "default_icon": "images/icon128.png",
    "default_title": "Gender --> Changer",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{1bc5bdbd-fc40-460c-a7a5-eff8c869dfc7}"
    }
  }
}