修复雷达引导2个相机引导录像重复问题；

‘liusuyi’

2023-10-25 bb22ca2e9b9c60b0138a322ad49cab7ea8aa06e1

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