Comparium browser testing

Name: Comparium browser testing
Author: VB88

By: VB88

Check how your website looks and works under any operating system, browser and its version.

This add-on was removed from Firefox Add-ons Store on 2026-05-13

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Features & Capabilities

Check how your website looks and works under any operating system, browser and its version.

Comparium Extension allows you to capture screenshots of a web page and run real time tests with just a single click right from Firefox browser.

Perform cross browser testing across multiple browsers and operating systems with no need of installing and maintaining an expensive device lab. Analyze visual inconsistencies and functional errors, check the behavior of your online resource in real user conditions with ease and in a matter of seconds. Make sure your web resource looks the same no matter the platform and device.

Features offered in Comparium: Instant access to multiple browsers and operating systems. Wide range of screen resolutions. Ability to perform real-time testing. Unlimited number of screenshots per session. Manual and automatic screenshots comparison mode. Ability to compare screenshots with mockup.

To learn more, please visit our official site: https://comparium.app/

Please note that you need to have and be logged in to a Comparium account before using Comparium Chrome extension. If you don’t have an account you can create it from the extension or by following this link: https://front.comparium.app/?screen_hint=signUp

User Growth & Download Statistics

Add-on

By:

VB88

Daily users:

Version:

1.2 Last updated: 2025-04-17

Version code:

5929430

Creation date:

2025-04-14

Risk:

Permissions:

Size:

435.36KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-05-13

Compare stats and ranking:

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:

VB88

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/comparium-browser-testing/

Is Comparium browser testing 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.

Comparium browser testing requires a few sensitive permissions. 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.

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.

Comparium browser testing may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.