Examine source code of Django Redirect

{
  "manifest_version": 2,
  "name": "Django Redirect",
  "description": "Automatically redirects to Django documentation to a specified version.",
  "author": "Erin O'Connell",
  "version": "1.0.1resigned1",
  "icons": {
    "64": "icon.png",
    "128": "icon128.png"
  },
  "page_action": {
    "default_icon": "icon.png",
    "default_title": "Redirect Django",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "browser-wrapper.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://docs.djangoproject.com/en/*"
      ],
      "js": [
        "browser-wrapper.js",
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "*://docs.djangoproject.com/en/*",
    "activeTab",
    "webRequest",
    "webRequestBlocking",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4417ca11-e480-40b5-87fb-022dac10744b}"
    }
  }
}