User-Agent Switcher for Chrome
Developer Tools
Spoofs & Mimics User-Agent strings.
Users
1M
Rating
3.9
Reviews
2,677
7D Growth
0|0%
Stable signalUnknownHigh-risk permissions
User Agent Switcher, URL sniffer
This extension can switch the browser's user agent string and it allows you to find all HTTP URLs.
Users70KCurrent public install base
Rating4.3Store average score
Reviews430Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
3 assetsUser Agent Switcher, URL sniffer Media preview
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7-day rating change
Start
4.30
Latest
4.30
7-day rating change
0.00
2026年7月13日2026年7月19日
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Version0.9.4.3
ManifestV3
Size116KiB
Languages19Deutsch / English / English (United Kingdom) +16
Published
Store updated
Last crawled
DeutschEnglishEnglish (United Kingdom)NederlandsTiếng Việtdanskespañolfrançaisitalianomagyarnorskpolski
Overview
Product summary
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Most web pages are fully and completely compatible with Chrome.
However, there are some sites that insist upon using a different browser.
So, an extension has been developed for Chrome called the Ultimate User Agent Switcher.
When a web page suggests using a different browser or upgrading the current one,
the Ultimate User Agent Switcher tricks the web site into believing that it is a different browser, often allowing access.
And this extension allows you to find all HTTP URLs. (URL sniffer feature)
Reviews
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Store average score4.3Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.1Average computed only from synced review bodies below
Reviews with text178Synced review bodies
Total ratings / reviews430Chrome Web Store public rating/review count
Store average score: 4.3. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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in the descrition it says: When a web page suggests using a different browser or upgrading the current one, the Ultimate User Agent Switcher tricks the web site into believing that it is a different browser, often allowing access So the extension circumvents notices to ugrade your browser. That sounds to me like a monumental stupid idea.
2025年12月現在、まったく使えません。
自定义真多，就喜欢这个了
Estensione super completa!
does not work on facebook
Kind of a train wreck, but it does allow you to set 'nonstandard' user agent strings, which is very useful for...research. I had to use the 'pattern' feature, it wouldn't work without. Your mileage may vary.
when i try to post on instagram using android tablet it tells me "Rotate your device to add to your story." Does anyone know how to solve this?
我看到有許多人說無法使用，那是因為列表裡的 User-Agent 列表太舊了，自己手動更新吧 Flag Name User Agent string CRM 電腦 Chrome Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36 IE10 電腦 Internet Explorer 10 Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Trident/6.0) mOS 電腦 Chrome on macOS Mozilla/5.0 (Macintosh; Intel Mac OS X 14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/118.0.0.0 Safari/537.36 iPh 手機 Apple iPhone SE (3rd generation) Mozilla/5.0 (iPhone14,6; U; CPU iPhone OS 15_4 like Mac OS X) AppleWebKit/602.1.50 (KHTML, like Gecko) Version/10.0 Mobile/19E241 Safari/602.1 WP7 手機 Windows Phone 7 Mozilla/4.0 (compatible; MSIE 7.0; Windows Phone OS 7.0; Trident/3.1; IEMobile/7.0) Asus;Galaxy6 Bot 手機 Googlebot Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.96 Mobile Safari/537.36 (compatible; Googlebot/2.1; +https://www.google.com/bot.html) iPad 平板 iPad 5 Mozilla/5.0 (iPad; CPU OS 5_0 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A334 Safari/7534.48.3 Tab 平板 Galaxy Tab S8 Ultra Mozilla/5.0 (Linux; Android 12; SM-X906C Build/QP1A.190711.020; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.119 Mobile Safari/537.36 Gbot 機器人 Googlebot Googlebot/2.1 (+http://www.googlebot.com/bot.html) Xbox 遊戲機 Xbox Series X Mozilla/5.0 (Windows NT 10.0; Win64; x64; Xbox; Xbox Series X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.82 Safari/537.36 Edge/20.02 BOX 電視棒 Chromecast Mozilla/5.0 (Fuchsia) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 CrKey/1.56.500000 KIN 電子書 Kindle Mozilla/5.0 (X11; U; Linux armv7l like Android; en-us) AppleWebKit/531.2+ (KHTML, like Gecko) Version/5.0 Safari/533.2+ Kindle/3.0+
When active using the updated list of user agents i get website errors "Your browser is out of date! Update your browser to view this website correctly." Clearly, this is using a very outdated list of user agents! Shame on the developer for halfassing it
pros: rich flexible configurations, can use regex matching. cons: not supporting navigator.userAgent and User-Agent Client Hints (sec-ch-ua headers) adjustment which "User Agent Switcher and Manager" can do. overall good extension.