extension ExtPose

Random User-Agent

Description from extension meta

Automatically change the user agent after specified period of time to a randomly selected one, thus hiding your real user agent

Image from store Random User-Agent
Description from store User-Agent - a string that is sent along to any website you visit. This is a sort of "fingerprint" your browser leaves behind which contains: - The name and version of your browser; - The name of the operating system (Mac, Windows, Linux, etc.) and its version; - Information about some of the plugins installed on the browser; - Other information that identifies and exposes you. This extension has been created to stop data leakage. It automatically replaces User-Agent strings after a specified period of time with a randomly selected one. User-Agent strings can also be set manually. The extension is incredibly lightweight, using very few resources. User-Agent randomization can be customized by the user (what browsers and OS are spoofed, etc.). Exceptions list available with option of wildcards. Protects against Javascript exploits to hide your identity and protect your anonymity. Source code: https://github.com/tarampampam/random-user-agent

Latest reviews

  • (2020-07-31) Julieann Patua: it works on me thanks
  • (2020-07-12) Любовь Цветочная: Самый рабочий и удобный аддон для подмены user-agent.
  • (2020-04-11) Zakir Hossain: I am loving this and it works great what I was looking for. I found Following parameters are unchanged if you can consider randomised with these parameters that will be great are: Product , Product sub ,Screen width , Screen height and Screen depth. Thank you once again.
  • (2020-03-28) elfy ray: Супер!!!
  • (2020-01-12) H3LiUM: Please update your UA string list, most of them are very obsolete and outdated that most sites give warning that they cannot display the webpage. Even tho I am using my custom added UA strings but its better to be in the extension itself. Like. Chrome 79, Firefox 69, IE 12, etc...
  • (2019-10-03) Musicport Nigeria: it is just too perfect
  • (2019-09-28) Цыцыгма Раднаева: Подскажите пожалуйста, как сделать, чтоб имитировал мобильную версию IOS?
  • (2019-09-14) waterfall: На этой проверке, несмотря на Random UA, показывает настоящий UA: https://webbrowsertools.com/useragent/ Будем надеяться, что такой проверки больше нигде нет, и пока она начнёт появляться на обычных, а не тестовых ресурсах, разработчик что-то придумает. Иначе, сами понимаете, мнимая защита хуже, чем вообще никакой.
  • (2019-08-14) Bukan Saya: Sangar gan
  • (2019-07-11) XoXo Bes Of The Wall: please update, microsoft edge, safari mac, xbox its not updated cannot use some of site
  • (2019-03-13) ѦՊԻ: It just does the job
  • (2019-03-11) Phong Lam Thanh: 5 stars. can you add more option to choice time change User Agent to second not minutes
  • (2019-01-09) Naga Durgarao Baddhi: Exactly what i need, Now *Random User-Agent* is my favorite extension. Special thanks to developers.
  • (2018-11-27) Silifkede Net: günceleme yapılması lazım ama yeni telefonların kullanıcıları burda yok
  • (2018-11-19) Natallia & Slava: Спасибо огромное! Отличное приложение.
  • (2018-09-22) http://service.spiritsoft.cn/ua.html 这个网站能够检测出我真正的ua是用什么方法的啊?
  • (2018-06-24) Seba Seba: Cпасибо, чел!
  • (2018-05-16) Что такое Baby: вы
  • (2018-05-09) G G Quatro: не могу оценить - ибо не вижу действия. пускай пока стоит
  • (2018-04-23) John Quers: This is a good and powerful user agent switcher but it is very limited in mobile versions of user agents. I hoped to see several user agents using Android or iOS versions but there were none. If the developer could please add mobile user agents like Android (KitKat, Jellybean) and iOS versions. and give the ability to use mobile user-agents only, this would be the most powerful user agent switcher right now.
  • (2018-03-28) Олександр Бугровий: need HTML5 Canvas Fingerprinting changer
  • (2018-02-28) Justin Z: It does work, however the "list" of user agents are simply checkboxes and do not show exactly what will be sent to the site. These are also sending less-than-current browser versions, which causes issues with some sites. The biggest drawback to this extension is being limited to only a few user agents in the random cycle. The user should be able to add to or modify the list. Ideally, the extension could update from a data source automatically so it doesn't rely on the developer to update (just for example, like http://www.browser-info.net/useragents).
  • (2018-02-26) Patucha Schwntz: new detection methods always can seen internal scripts, this extensión can't spoof the true javascript OS. easily detectable despite random techniques.
  • (2018-02-21) Matthew Sobecky: Excellent and simple. Protip: remove the mobile user agents to avoid beign served the mobile version of sites.
  • (2018-01-31) Sergio El Pro: Muchas gracias me he podido desbanear de un habbo holo

Latest issues

  • (2016-08-14, v:2.0.5) The new permissions are a deal breaker
    This is a security-related extension, that asks for blanket permissions to do whatever it wants. "Read and change all your data on websites you visit" ? Nope! Will gladly install once back to sane permissions.
  • (2016-08-14, v:2.0.5) Вася Молнар: Верните.
    Верните возможность вставлять свой USER AGENT при нажатии на иконку вверху. А то каждый раз нужно настройки открывать. Спасибо.
  • (2016-08-10, v:2.0.3) New Permisisons?
    The new permissions requested by the latest version seem to be pretty scary: `Read and change all your data on the websites you visit` Since your overview graphic shows this extension to be open source, I'd love to see the git repo so I can determine for myself if I should let Chrome re-enable this extension or not. Thanks!
  • (2016-06-21, v:1.5.4) λlτεrηιτγ: Vulnerability?
    This extension loads older versions of chrome as a profile, making Chrome tell me to update to stay secure and avoid vulnerabilities. Is this extension actually reverting my browser to an older less secure version?
  • (2016-05-10, v:1.5.4) Сергей Жигарь: Подмена UA в JavaScript
    Прочитал на habrahabr Ваш вопрос по передаче в content.js-инъекцию параметра для функции setupUserAgentHook(UserAgent) Моё решение - в заголовок ответа добавляйте set-cookie:UserAgent=текущий_UA В content.js используйте его для функции setupUserAgentHook и тут же удаляйте. Конечно потенциально возможен конфликт имён куков, но его тоже в принципе можно обойти.
  • (2016-03-09, v:1.5.4) Chuck Ray: Chrome versions are too old
    Hi, Google releases Chromes on a fairly regular schedule. The Chrome UA strings used in the extensions are too old and some websites refuse to load (hangouts.google.com) or display a warning (google.com) that the browser is too old. You could make the Chrome version numbers follow GOogle's release schedule so it looks like the browser isn't 2 years old. You could probably generate them depending on the current date and limit to the 5 or 10 previous versions. If the code is public, I'd be happy to take a look and make a PR. LMK,
  • (2016-02-09, v:1.5.4) reepeez: lookign for someoen to develope an extension for me
    please contact me [email protected] to discuss the project. thanks.
  • (2015-11-23, v:1.5.4) KOLESO RU: Блокирует сайт
    После установки перестает работать приближение на яндекс картах. https://maps.yandex.ru/
  • (2015-09-20, v:1.5.4) paul k: change jQuery requests?
    Many Websites also make use of JQuery Browser and OS identification. So that they can override the User-Agent String to determine your data. Example: http://stoimen.com/jquery.client.plugin/ Is it possible to change these querys too? Thx.
  • (2015-06-30, v:1.5.4) Blade Jack: Auto Change and Import & Export List
    Hi, This extension best user agent switcher for chrome. I have two idea, please add. + Auto change user agent every open chrome + Export & Import User Agent List feature. Thanks.


52,521 history
4.625 (128 votes)
Last update / version
2020-07-20 / 2.2.13
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