User-Agent Modifier

Name: User-Agent Modifier
Rating: 5 (1 reviews)
Author: flycoder

edit user-agent string quickly and easily

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The add-on allows you set user-agent string within the toolbar popup. It will change user-agent for every web request. It also change the window.navigator.userAgent value.

Add-on

By:

flycoder

Daily users:

Rating:

5.00

(1)

Version:

1.0.1 Last updated: 2020-03-25

Version code:

4989489

Creation date:

2020-03-25

Risk:

Permissions:

storage
tabs
webNavigation
webRequest
webRequestBlocking
<all_urls>
*://*/*

Size:

106.68KB

Full description:

Source:

Firefox Browser Add-ons

Data ingested on:

2025-07-14

Ranking

# 24,106 ▲ 24

Other rankings

#26 in agent keyword 61 #47 in modify keyword 41 ▼ 3 #119 in agenda keyword 17 ▲ 2 #161 in string keyword 11

User reviews

by 敬念*****, 2025-04-21

by 天灭*****, 2025-03-15

Unlike the other User Agent "modifier" add-ons, this one just lets you modifier the UA! No hundreds of choices. No "by Website/URL"! No dialogs and fancy choices... It just allows modifying the UA like the old useragent override config setting.

by Fi*****, 2020-04-16

View all user reviews ›

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.

User-Agent Modifier requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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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 Browser Add-ons, 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 Modifier has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

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