Examine source code of littleLotus Proxy

{
  "manifest_version": 2,
  "name": "littleLotus Proxy",
  "version": "3.3",
  "icons": {
    "48": "icons/fox.png"
  },
  "permissions": [
    "proxy",
    "storage",
    "<all_urls>",
    "webRequest",
    "webRequestBlocking",
    "activeTab",
    "http://*/",
    "https://*/"
  ],
  "options_ui": {
    "page": "options.html",
    "chrome_style": false
  },
  "background": {
    "scripts": [
      "quickproxy.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": "icons/fox.png",
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "lottoka@icloud.com",
      "strict_min_version": "91.1.0"
    }
  }
}