aa

jiangping

2025-04-18 de36fd9e946832e224ba3b9ba4fab4cf8058ad2a

1
2
3
4
5
6
'use strict';
var userAgent = require('../internals/environment-user-agent');
 
var firefox = userAgent.match(/firefox\/(\d+)/i);
 
module.exports = !!firefox && +firefox[1];