版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/webextension-polyfill/0.12.0/browser-polyfill.js
- https://cdn.bootcdn.net/ajax/libs/webextension-polyfill/0.12.0/browser-polyfill.js.map
- https://cdn.bootcdn.net/ajax/libs/webextension-polyfill/0.12.0/browser-polyfill.min.js
- https://cdn.bootcdn.net/ajax/libs/webextension-polyfill/0.12.0/browser-polyfill.min.js.map