Custom UserAgent String

Name: Custom UserAgent String
Author: Leonardo Compson

Add a custom useragent string for desired URLs or domains.

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Custom UserAgent String is a powerful Chrome extension that allows you to customize your browser's user-agent on a per-site basis. With this add-on, you can assign unique user-agent strings to individual URLs or entire domains, helping you simulate different browser environments effortlessly.

Key features include an intuitive options page for managing user-agent strings, a handy toolbar toggle to enable or disable the extension quickly, and support for adding or disabling user-agent entries. Additionally, over 100 sample user-agent strings covering modern desktop and mobile browsers are provided to help you get started. This extension is perfect for developers, testers, and privacy-conscious users who need flexible control over their browser's identity. For bug reports or more information, visit the addon's homepage.

Add-on Developer Tools Privacy & Security Productivity

By:

Leonardo Compson

Users:

8,101 23

Version:

0.2.4 Last updated: 2025-04-06

Creation date:

2020-09-24

Risk:

Permissions:

storage
declarativeNetRequest

Host permissions:

*://*/*
ws://*/*
wss://*/*

Size:

342.42KB

URLs:

Website ,Privacy policy

Full description:

Source:

Edge Add-on Store

Data ingested on:

2025-07-12

Ranking

# 1,864 ▲ 20

Other rankings

#567 in Productivity ▲ 8 #1 in string keyword 11 #66 in agent keyword 61 ▲ 3 #92 in switch keyword 26 ▲ 1 #166 in options keyword 16 ▲ 1

Extension safety

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.

Custom UserAgent String 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.
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Risk likelihood

Risk likelihood measures the probability that an Edge add-on may turn malicious. This is determined by the publisher and the Edge add-on reputation on Edge Add-on Store, the amount of time the Edge add-on has been around, and other signals about the Edge 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 an Edge add-on.

Custom UserAgent String is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****

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