Chrome Mask

Name: Chrome Mask
Rating: 4.5145 (138 reviews)
Author: skyschub

By: skyschub

Makes Firefox wear a mask to look like Chrome to websites that block Firefox otherwise.

Download

Install

Features & Capabilities

Chrome Mask is a Firefox extension that enables users to toggle their browser's identity to appear as Google Chrome on specific websites. Unlike generic user agent spoofers, this extension selectively masks Firefox only on user-defined sites and automatically updates the spoofed Chrome version daily by querying an external API. It also adjusts other browser attributes like navigator.vendor and the global chrome object to pass common browser checks seamlessly.

This ensures compatibility with sites that block Firefox browsers, enhancing browsing accessibility without compromising user experience. With its smart OS detection and easy one-click toggle, Chrome Mask provides a simple yet powerful solution for Firefox users facing browser restrictions.

User Growth & Download Statistics

Add-on Privacy & Security Developer Tools

By:

Daily users:

Rating:

Version:

9.0.0 Last updated: 2026-06-02

Version code:

6277817

Creation date:

2024-06-28

Risk:

Permissions:

Size:

59.72KB

Email:

ch*****@overengineer.dev

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-16

Compare stats and ranking:

Ranking

# 308 ▲ 2

Other rankings

#11 in Web Development

#1 in choose keyword 28

#1 in chrome keyword 96

#1 in chrome browser keyword 75

#1 in come keyword 21

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:

skyschub

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/chrome-mask/

Email:

ch*****@overengineer.dev

Website:

https://github.com/skyschub/chrome-mask/issues

Publisher Change History

2026-05-27: ch*****@dennis-schubert.de to ch*****@overengineer.dev

Upgrade to see full email

User Reviews

Chrome Mask helps Firefox mimic Chrome, often boosting YouTube speed and usability and is praised for ease of use and solving issues for some users. However, it frequently breaks YouTube playback or disables subtitles, and compatibility is spotty on certain sites like F1 TV. Overall, it’s useful for specific workflows, but YouTube reliability and site compatibility are notable downsides.

Pros

Chrome disguise enables a Chrome-like experience on Firefox, giving users the best of both worlds.
YouTube performance improves (faster loading and smoother usability) when the extension is active.
Easy to use with a simple, one-click disguise to Chrome.
Generally positive impact and problem-solving for some users (works well for certain workflows).

Cons

Subtitles/captions on YouTube frequently don’t work or disappear.
YouTube playback can break or become inconsistent due to how the extension manipulates CORS.
Not all sites are supported (e.g., F1 TV may not work with the extension).
Inconsistent behavior on YouTube; some users report that it doesn’t work at all for YouTube.

Recent reviews

by Mi*****, 2026-06-15

by go*****, 2026-06-14

I don't know how to rate it, I only tried it on Microsoft clipchamp, but it keeps saying that I have an unsupported browser. It wants either chrome or Microsoft edge.

by *****, 2026-06-08

View all user reviews ›

Is Chrome Mask 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.

Chrome Mask 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.
Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******

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.

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

Risk likelihood analysis details

High This extension has recently changed publisher email (might be a transfer in ownership)
High **** ********* *** ******** ******* ** *** **** ****** *** ******* *** *** ** ****** ** *****
Medium **** ********* *** ******** ****** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Low **** ********* *** **** **** ****** ******* ********** **** ****** ** ** ****** *** *****
Good **** ********* ** ****** ** ********
Good **** ********* *** **** **** *******