Examine source code of Simple Javascript Switch

{
  "manifest_version": 2,
  "name": "Simple Javascript Switch",
  "version": "1.1.0",
  "description": "Minimal javascript switch for enabling/disabling javascript on a domain basis.",
  "data_collection_permissions": {
    "required": [
      "none"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "{130502b0-06d1-4b92-8741-b9f03a333b46}"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Simple Javascript Switch"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "permissions": [
    "storage",
    "tabs",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ]
}