User-Agent Switcher and Manager icon

User-Agent Switcher and Manager

by rynu.smith

v0.6.6 Updated Oct 8, 2025 786KiB
CWS
300K
Users
★ 4.35
266 reviews
#644
of 207.2K
developer
#63 of 18.1K

Description

Usage example: You can alter your user-agent string to indicate you?re on a mobile device if you prefer seeing mobile versions of sites so they load quicker. -- This extension allows you to spoof your browser "user-agent" string to a custom designation, making it impossible for websites to know specific details about your browsing arrangement. Video overview: https://www.youtube.com/watch?v=4M6_Zc4o1MQ Notes: 1. You can easily set custom "user-agent" strings from the toolbar popup 2. The extension uses a two-factor technique to mimic your default "user-agent" string, which is the most reliable method 3. The extension does not use any resources when it is not spoofing the user-agent 4. The extension enables user-agent spoofing on specific domains only; it is conversely possible to exclude certain domains from spoofing. Check the Options page for more info. 5. You can set per-site user-agent strings 6. There is an option to randomize user-agent strings. 7. It is possible to set user-agent string for a single window; you can have a separate user-agent string for each browser window 8. It supports modern browser identification mechanisms such as "Client Hints" headers and the "navigator.userAgentData" object. For more info and general bug reports please use: https://webextension.org/listing/useragent-switcher.html For technical bug reports please use: https://github.com/ray-lothian/UserAgent-Switcher/
User-Agent Switcher and Manager screenshot 1

Reviews (35 cached)

★☆☆☆☆2026-03-08
The Song Re-Uploader

Breaks the google website and google search on Brave, making the website look really plain, also disables core features of google search, which sucks.

★☆☆☆☆2026-01-10
Swift Kordyne

Makes it impossible to pass cloudflare veification without pausing or temporarily disabling the extension, rendering it useless for numerous websites.

★☆☆☆☆2025-12-03
Valentin Degenne

meh... it sometimes works but it is so broken here and there it becomes really unstable to use.... Good attempt and effort but sometimes you need to make tools more minimalist and functional...

★☆☆☆☆2025-07-01
Koopa Boy

Why the hell does this extension keep opening tabs to its update notes? Buzz off...

★☆☆☆☆2025-06-20
Roll Books Stuff

I have installed to use on TWITCH, but all the ADS from TWITCH still apearing, and it doesn't matter if the streamer has been on camera for 1 hour or its just starting the ADS appears. ((20th june, 2025))

★☆☆☆☆2025-03-11
сергей кушнир

only "chrome"...

★☆☆☆☆2024-10-01
Suman Sharma

does not work on facebook

★☆☆☆☆2024-08-06
David Shrum

Does not work for me, in Edge if I try to track a UPS shipment, it never loads, I try to select Firefox and refresh the tab, nothing changes.

★☆☆☆☆2024-07-15
Yves Genie

It is very helpfull BUT i can not set custom version of fake browser so I can not use service with existed presets due to outdated version browser it says.

★☆☆☆☆2024-02-10
Pilot Man

I don't understand how people still using this one, it left a very big bug, easily can be traced by any bot detector, added amd64 on all useragents, sounds funny, this should match with current architecture or a way to select on extension based on cpu

★☆☆☆☆2023-09-24
A

1. Doesn't work with CloudFlare, makes visiting websites proxied by it impossible and we are talking about millions of websites. 2. The internal database of User Agents is rarely if ever updated. 3. In rare cases when you visit a website, the current tab simply freezes, the CPU use spikes to 100% and nothing ever happens. You just cannot browse it until you disable the extension.

★☆☆☆☆2023-03-20
Dee Gee

Simply didn't work. Websites weren't fooled for a moment.

★☆☆☆☆2023-03-12
Chris Vydas

Poorly done, bugs, causes severely high CPU usage only with this extension enabled. Couldn't uninstall fast enough!!! If you're like me and wondering why all of a sudden your browser is hanging and crashing, look no further... This extension is the culprit

★☆☆☆☆2021-08-10
space Explorers

Extensions doesn't actually work. browser information is being leaked. attempted to watch tv on linux and got a "Linux not supported.." switched the "agent" to all variations of "supported OS's and browsers" but it still reports it doesnt support linux... So I installed extension on windows, chose a linux version of a browser and it loaded just fine.. extension doesn't work completely.

★☆☆☆☆2021-05-16
CHIRAG SINGHAL

useless for me.

★☆☆☆☆2020-02-28
Hosty

How can u call yourself a user agent switcher when u dont have the basic ones? Search engine bots!!

★★☆☆☆2024-06-25
Brickstin (JenixJuno)

Recent updates to this extension has completely prevented Facebook.com from functioning. This extension is completely useless now............It has broken Facebook entirely.. Worked great while it lasted.

★★☆☆☆2022-01-18
Peter Buick

WARNING: Seems to force chrome to 32 bit??

★★☆☆☆2021-07-03
Björn Draegert

It might work with some sites, but my company's website still always loads its tablet version on my Pixelbook, no matter what I set the agent to (but of course it works without a hitch on my Windows PC). I also deleted all cookies and other temp files, still to no avail.

★★☆☆☆2021-05-09
bloodys spammers

💩 USELESS ON YANDEX MOBILE BROWSER! 💩 🤬 OUTDATED UA!!! POOR UI! 🤬💩

★★☆☆☆2020-09-15
Neongreensniper Pie

Looks good, but does not work with the browser brave it always says connection failed when trying to download it.

★★☆☆☆2019-04-13
Graham Norris

Worked precisely once in Vivaldi. For that one time it worked perfectly, now its icon simply doesn't respond when clicked.

★★☆☆☆2018-04-10
Marcelo Ois Lagarde

It does what is supposed to do, but is the annoying User-Agent selection tab that pop-ups when the browser is opened, what decided me to uninstall it. The tab pop-ups every single time the browser is opened, even if the extension is disabled. It's a pitty.

★★★☆☆2025-04-20
Tony “Fan4eG” W.

cant pass cloudflare =\

★★★☆☆2025-01-03
James Jamesson

3 star since it doesn't pass the cloudflare verification. Please fix it.

★★★☆☆2024-08-03
Jonathan Chang

Basically works but hard to use.

★★★☆☆2024-06-13
Maxwell Wilson

Nice, but I can't get it to automatically work on newly opened windows (even if the main / host window has it enabled)

★★★☆☆2023-11-02
Kévin Ouellet (Dream of Omni)

It doesn't work all the time. I just tried logging in on Twitch in Chrome and got an error about unsupported browser even though I had the latest version. So I switched my user agent to Firefox and I still would get the login error. Same with switching to Safari user agent.

★★★☆☆2023-09-04
Numb

It does work, but on some sites, they just outright block you when you have this enabled in Vivaldi. You then need to make an exception for those sites, which defeats the purpose, but it does work.

★★★☆☆2022-11-27
magnetique12

I need to remove 2 stars because of annoying update tab open itself!

★★★☆☆2021-02-28
Brad Wicks

How do you get new agent strings for it, as of March 2021 the Win 10 user strings (which I use to spoof Win 7), the Chrome version number is now 3 version behind.

★★★☆☆2019-10-28
Marcus Deubel (Heinz Hammer)

Does not work as expected. Whitelisting does not work.

★★★☆☆2019-08-02
Ray

Cool, add ip & proxy changer please i need it

★★★☆☆2019-07-25
Alice B

Far too complicated, can't even add new string.

★★★☆☆2019-06-26
REAPER SCAN

Slow loadwhile selecting UA

Permissions (4)

Permissions

contextMenus Can add items to the right-click menu declarativeNetRequestWithHostAccess scripting Can inject scripts into web pages storage Can store data locally in your browser

Details

Version 0.6.6
Updated Oct 8, 2025
Size 786KiB
First Seen Mar 29, 2026