Examine source code of ContainerGate

{
  "manifest_version": 2,
  "name": "ContainerGate",
  "version": "1.0.1",
  "description": "__MSG_extDescription__",
  "default_locale": "en",
  "author": "Axel Tinoco",
  "homepage_url": "https://github.com/AxelTinoco/ContainerGate",
  "permissions": [
    "tabs",
    "storage",
    "contextualIdentities",
    "cookies",
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png"
    },
    "default_title": "ContainerGate",
    "default_popup": "popup/popup.html"
  },
  "web_accessible_resources": [
    "interstitial/interstitial.html",
    "interstitial/interstitial.css",
    "interstitial/interstitial.js",
    "i18n.js"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "containergate@extension",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}