Hov to change user agent in Firefox without any plugins

Sometimes we need to visit any website from mobile phone or other device, but we haven’t this devise. Or if we want to hide from website real name of browser and operating system. In this case we can change default User agent record in browser PC.

Lets watch how to change User agent in Firefox browser. Open new tab and write there next code:

about:config

In search line write next code:

general.useragent.override

Then check “New line”, press button + (Create) and write User agent in text field. For example if we want that our Firefox browser looks like Internet Explore 9 – write next code:

Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)

Here is some examples of user agents for popular browsers:

Desktop browsers:

  • Mozilla Firefox 64 (Win 10 x64): Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0)
  • Mozilla Firefox 36 (Win 8.1 x64): Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0
  • Google Chrome 53 (Win 10 x64): Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36
  • Google Chrome 40 (Win 8.1 x64): Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.115 Safari/537.36
  • Opera 40 (Win 10 x64): Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.101 Safari/537.36 OPR/40.0.2308.62
  • Opera 12.17 (Win 8 x64): Opera/9.80 (Windows NT 6.2; WOW64) Presto/2.12.388 Version/12.17
  • Apple Safari 5.1 (Win 8 x64): Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/534.57.2 (KHTML, like Gecko) Version/5.1.7 Safari/534.57.2
  • Internet Explorer 11 (Win 10 x64): Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; rv:11.0) like Gecko
  • Internet Explorer 11 (Win 8.1 x64): Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; ASU2JS; rv:11.0) like Gecko
  • Microsoft Edge (Win 10 x64): Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2486.0 Safari/537.36 Edge/13.10586

Mobile browsers:

  • iPhone: Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25
  • Android 2.3.5 (Philips W632): Mozilla/5.0 (Linux; U; Android 2.3.5; ru-ru; Philips W632 Build/GRJ90) AppleWebKit/533.1 (KHTML, like Gecko) Version/4.0 Mobile Safari/533.1

Laptops:

iPad: Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25

Search engines:

  • Яндекс: Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)
  • Google: Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
  • Bing: Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)
  • Yahoo! Slurp: Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp)
  • Mail.ru: Mozilla/5.0 (compatible; Linux x86_64; Mail.RU_Bot/Fast/2.0; +http://go.mail.ru/help/robots)
  • Sputnik: Mozilla/5.0 (compatible; SputnikBot/2.3; +http://corp.sputnik.ru/webmaster)

Robots, bots, analyzers:

  • Ahrefs: Mozilla/5.0 (compatible; AhrefsBot/5.0; +http://ahrefs.com/robot/)
  • Majestic: Mozilla/5.0 (compatible; MJ12bot/v1.4.5; http://www.majestic12.co.uk/bot.php?+)
  • SMTBot: Mozilla/5.0 (compatible; SMTBot/1.0; +http://www.similartech.com/smtbot)
  • linkdex: Mozilla/5.0 (compatible; linkdexbot/2.2; +http://www.linkdex.com/bots/)
  • Exabot: Mozilla/5.0 (compatible; Exabot/3.0; +http://www.exabot.com/go/robot)
  • StatOnline.ru: Mozilla/5.0 (compatible; StatOnlineRuBot/1.0)
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