Onion

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Onion",
  "description": "A simple proxy tool",
  "version": "1.2.0",
  "permissions": [
    "proxy",
    "storage",
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "browser_action": {
    "default_icon": "icon.png"
  },
  "icons": {
    "64": "icon.png"
  },
  "options_page": "index.html",
  "background": {
    "scripts": [
      "background.bundle.js"
    ],
    "persistent": true
  }
}