Chameleon

Name: Chameleon
Rating: 4.6221 (217 reviews)
Author: sereneblue

By: sereneblue Add-on

Spoof your browser profile. Includes a few privacy enhancing options. A WebExtension port of Random Agent Spoofer.

Overview

Firefox Add-ons Store

Daily users

8,217 ▲ 149

Data as of 2026-08-19

Rating:

4.62 ▼ 0.01

(217)

Version:

0.22.86.1

Last updated: 2026-07-29

Features & Capabilities

Chameleon is a versatile Chrome extension that enhances your online privacy by spoofing your browser profile and providing powerful privacy options. As a WebExtension port of the popular Firefox add-on Random Agent Spoofer, Chameleon allows you to randomly select and rotate user agents across various platforms and device types, helping you mask your browser identity.

Beyond user agent spoofing, Chameleon offers a comprehensive set of privacy features including Do Not Track, referer header modifications, ETag tracking prevention, and blocking or spoofing media devices. It also protects against advanced fingerprinting techniques such as audio context, font fingerprint, screen size, timezone spoofing, and WebRTC leaks. With options to limit tab history and modify cookie policies, it further secures your browsing.

Chameleon's intuitive UI supports light/dark themes and quick toggling. Its whitelist system lets you apply real or spoofed profiles selectively using custom rules and regular expressions. Ideal for privacy-conscious users, Chameleon empowers you with tools to resist tracking and fingerprinting while surfing the web safely and anonymously.

User Growth & Download Statistics

Add-on Privacy & Security

By:

Daily users:

Rating:

Version:

0.22.86.1 Last updated: 2026-07-29

Version code:

6381373

Creation date:

2018-06-18

Risk:

Permissions:

Size:

889.55KB

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-19

Compare stats and ranking:

Ranking

# 846 ▲ 9

Other rankings

#187 in Privacy & Security ▲ 3

#63 in agent keyword 62 ▼ 1

#77 in include keyword 20

#106 in profile keyword 25 ▼ 2

#118 in name keyword 18 ▲ 1

Upgrade to see more rankings

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

sereneblue

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/chameleon-ext/

Website:

https://sereneblue.github.io/chameleon

User Reviews

Chameleon is praised for privacy protection and device spoofing capabilities, with many reviewers calling it valuable and highly recommended. However, users report stability issues with settings, site-specific breakages (notably on YouTube/Twitch and sites using Cloudflare), and mixed spoofing effectiveness across sites.

Pros

Privacy protection while browsing (anti-tracking and fingerprinting defenses).
UA spoofing and device randomization to help hide your online identity.
Highly useful and positively reviewed extension; generally recommended.

Cons

Settings can be unstable, including random resets/deletions and import failures.
Inconsistent site compatibility; some sites (for example YouTube and Twitch) may not work properly.
Spoofing is not always effective; some sites detect or identify the browser despite the spoof.

Recent reviews

Even though I specify a profile in the whitelist, only the "Real" or "Random" basic settings actually take effect. The "Random" setting works very well; I think it is excellent if your goal is simply to protect your privacy. However, it does not meet the needs of users who want to use "Real" (or "Random") by default but switch to Chrome for specific sites. It didn't suit my requirements.

by Fi*****, 2026-08-19

by eb*****, 2026-07-26

View all user reviews ›

Is Chameleon 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.

Chameleon requires some sensitive permissions that could impact your browser and data security. 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 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.

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

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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