Examine source code of SpeedVPN Toggle Proxy

{
  "description": "Toggle Proxy",
  "manifest_version": 2,
  "name": "Toggle Proxy",
  "version": "1.1",
  "permissions": [
    "storage",
    "proxy",
    "<all_urls>",
    "webRequest",
    "webRequestBlocking"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "info@speed-vpn.com",
      "strict_min_version": "60.0"
    }
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/disabled.png"
    }
  }
}