Features & Capabilities
User Growth & Download Statistics
- By:
- Linder
- Daily users:
- 14,968 -89
- Rating:
- 3.93 (307)
- Version:
- 0.3.3 Last updated: 2025-12-19
- Version code:
- 6098750
- Creation date:
- 2017-01-15
- Risk:
- Moderate risk impact Moderate risk likelihood
- Permissions:
- Host permissions:
- *://*/*
- *://*/*
- Size:
- 93.63KB
- Email:
- dr*****@yahoo.com
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-19
- Compare stats and ranking:
- User-Agent Switcher vs User Agent Switcher
- User-Agent Switcher vs Custom UserAgent String
- User-Agent Switcher vs UserAgent Switch
Contact the developer
Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Permission Change History
2025-02-28: Version 0.3.0 → 0.3.2
Add Host permissions: *://*/*
Add Permissions: scripting declarativeNetRequest
Remove Permissions: *://*/* webRequest webRequestBlocking
User Reviews
Pros
- Easy to use and has a simple interface.
- Functions as intended and allows quick switching between user agents.
- Provides site-targeted control, letting you choose where the switch applies.
Cons
- Built-in user-agent lists are outdated and require frequent updates, leading to site errors.
- Not compatible with the latest Firefox versions; users report it stops working on newer browser builds.
- Maintenance and updates are lacking, with multiple reviews calling for more frequent UA data updates.
Recent reviews
Why does it want now to "Block content on any page"?
by En*****, 2026-05-14
It's not working. I'm very disappointed.
by Pu*****, 2025-12-21
by as*****, 2025-11-24
Is User-Agent Switcher Safe?
Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.
User-Agent Switcher requires a few sensitive permissions. Exercise caution before installing.
Risk impact analysis details
- Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.
User-Agent Switcher is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
Risk likelihood analysis details
- Medium This extension has medium user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
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