代码初始化

jiangping

2025-04-21 561a8559ba10c7af2a6100d5a2700af7a72a3eba

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